diff --git a/projects/packages/classic-theme-helper/changelog/add-require-content-options-in-classic-theme-helper-package b/projects/packages/classic-theme-helper/changelog/add-require-content-options-in-classic-theme-helper-package
new file mode 100644
index 0000000000000..58e968282a271
--- /dev/null
+++ b/projects/packages/classic-theme-helper/changelog/add-require-content-options-in-classic-theme-helper-package
@@ -0,0 +1,4 @@
+Significance: minor
+Type: added
+
+Content Options: Ensuring feature is now required.
diff --git a/projects/packages/classic-theme-helper/src/class-main.php b/projects/packages/classic-theme-helper/src/class-main.php
index 8b230e3d2a7c6..27dce7a41d518 100644
--- a/projects/packages/classic-theme-helper/src/class-main.php
+++ b/projects/packages/classic-theme-helper/src/class-main.php
@@ -26,6 +26,7 @@ class Main {
 		'site-breadcrumbs.php',
 		'social-menu.php',
 		'jetpack-color.php',
+		'content-options.php',
 	);
 
 	/** Holds the singleton instance of the Loader
diff --git a/projects/packages/classic-theme-helper/src/content-options/customizer.js b/projects/packages/classic-theme-helper/src/content-options/customizer.js
index e853604242cdd..5170db0277d57 100644
--- a/projects/packages/classic-theme-helper/src/content-options/customizer.js
+++ b/projects/packages/classic-theme-helper/src/content-options/customizer.js
@@ -1,4 +1,4 @@
-/* global blogDisplay, postDetails */
+/* global blogDisplay, postDetails, wp */
 
 /**
  * customizer.js
@@ -6,213 +6,143 @@
  * Theme Customizer enhancements for a better user experience.
  *
  * Contains handlers to make Theme Customizer preview reload changes asynchronously.
- * @param $
  */
 
-jQuery( function ( $, wp ) {
-	// Blog Display
-	wp.customize( 'jetpack_content_blog_display', function ( value ) {
-		if ( 'content' === blogDisplay.display ) {
-			$( '.jetpack-blog-display.jetpack-the-excerpt' ).css( {
-				clip: 'rect(1px, 1px, 1px, 1px)',
-				position: 'absolute',
-			} );
-			$( '.jetpack-blog-display.jetpack-the-content' ).css( {
-				clip: 'auto',
-				position: 'relative',
-			} );
-		} else if ( 'excerpt' === blogDisplay.display ) {
-			$( '.jetpack-blog-display.jetpack-the-content' ).css( {
+/**
+ * Function to apply styles to elements based on the display type
+ * @param {object} selectors - HTML selectors which styles will apply to.
+ * @param {object} styles    - Styles to be applied to selectors.
+ */
+function applyStyles( selectors, styles ) {
+	document.querySelectorAll( selectors ).forEach( el => {
+		for ( const [ key, value ] of Object.entries( styles ) ) {
+			el.style[ key ] = value;
+		}
+	} );
+}
+
+// Blog Display
+wp.customize( 'jetpack_content_blog_display', function ( value ) {
+	/**
+	 * Updates the blog display based on the selected option.
+	 * @param {string} to - Content display option.
+	 */
+	function updateBlogDisplay( to ) {
+		const contentSelectors = '.jetpack-blog-display.jetpack-the-content';
+		const excerptSelectors = '.jetpack-blog-display.jetpack-the-excerpt';
+		const featuredContentSelectors = '.featured-content .jetpack-blog-display';
+
+		if ( to === 'content' ) {
+			applyStyles( `${ excerptSelectors }, ${ featuredContentSelectors }.jetpack-the-excerpt`, {
 				clip: 'rect(1px, 1px, 1px, 1px)',
 				position: 'absolute',
 			} );
-			$( '.jetpack-blog-display.jetpack-the-excerpt' ).css( {
+			applyStyles( `${ contentSelectors }, ${ featuredContentSelectors }.jetpack-the-content`, {
 				clip: 'auto',
 				position: 'relative',
 			} );
-		} else if ( 'mixed' === blogDisplay.display ) {
-			$( '.jetpack-blog-display.jetpack-the-content.output-the-content' ).css( {
-				clip: 'auto',
-				position: 'relative',
-			} );
-			$( '.jetpack-blog-display.jetpack-the-excerpt.output-the-content' ).css( {
-				clip: 'rect(1px, 1px, 1px, 1px)',
-				position: 'absolute',
-			} );
-			$( '.jetpack-blog-display.jetpack-the-content.output-the-excerpt' ).css( {
+		} else if ( to === 'excerpt' ) {
+			applyStyles( `${ contentSelectors }, ${ featuredContentSelectors }.jetpack-the-content`, {
 				clip: 'rect(1px, 1px, 1px, 1px)',
 				position: 'absolute',
 			} );
-			$( '.jetpack-blog-display.jetpack-the-excerpt.output-the-excerpt' ).css( {
+			applyStyles( `${ excerptSelectors }, ${ featuredContentSelectors }.jetpack-the-excerpt`, {
 				clip: 'auto',
 				position: 'relative',
 			} );
-		}
-		value.bind( function ( to ) {
-			if ( 'content' === to ) {
-				$( '.jetpack-blog-display.jetpack-the-excerpt' ).css( {
-					clip: 'rect(1px, 1px, 1px, 1px)',
-					position: 'absolute',
-				} );
-				$( '.jetpack-blog-display.jetpack-the-content' ).css( {
-					clip: 'auto',
-					position: 'relative',
-				} );
-			} else if ( 'excerpt' === to ) {
-				$( '.jetpack-blog-display.jetpack-the-content' ).css( {
-					clip: 'rect(1px, 1px, 1px, 1px)',
-					position: 'absolute',
-				} );
-				$( '.jetpack-blog-display.jetpack-the-excerpt' ).css( {
-					clip: 'auto',
-					position: 'relative',
-				} );
-			} else if ( 'mixed' === to ) {
-				$( '.jetpack-blog-display.jetpack-the-content.output-the-content' ).css( {
+		} else if ( to === 'mixed' ) {
+			applyStyles(
+				`${ contentSelectors }.output-the-content, ${ featuredContentSelectors }.jetpack-the-content.output-the-content`,
+				{
 					clip: 'auto',
 					position: 'relative',
-				} );
-				$( '.jetpack-blog-display.jetpack-the-excerpt.output-the-content' ).css( {
-					clip: 'rect(1px, 1px, 1px, 1px)',
-					position: 'absolute',
-				} );
-				$( '.jetpack-blog-display.jetpack-the-content.output-the-excerpt' ).css( {
+				}
+			);
+			applyStyles(
+				`${ excerptSelectors }.output-the-content, ${ contentSelectors }.output-the-excerpt, ${ featuredContentSelectors }.jetpack-the-excerpt.output-the-content, ${ featuredContentSelectors }.jetpack-the-content.output-the-excerpt`,
+				{
 					clip: 'rect(1px, 1px, 1px, 1px)',
 					position: 'absolute',
-				} );
-				$( '.jetpack-blog-display.jetpack-the-excerpt.output-the-excerpt' ).css( {
+				}
+			);
+			applyStyles(
+				`${ excerptSelectors }.output-the-excerpt, ${ featuredContentSelectors }.jetpack-the-excerpt.output-the-excerpt`,
+				{
 					clip: 'auto',
 					position: 'relative',
-				} );
-			}
-			if ( blogDisplay.masonry ) {
-				$( blogDisplay.masonry ).masonry();
+				}
+			);
+		}
+
+		if ( blogDisplay.masonry ) {
+			const masonryElement = document.querySelector( blogDisplay.masonry );
+			if ( masonryElement ) {
+				masonryElement.masonry();
 			}
-		} );
+		}
+	}
+
+	updateBlogDisplay( blogDisplay.display );
+	value.bind( updateBlogDisplay );
+} );
+
+/**
+ * Function to update post details visibility
+ * @param {object} selectors   - HTML selectors which styles will apply to.
+ * @param {string} to          - Content display option.
+ * @param {string} hiddenClass - Class to be added to the body when the post details are hidden.
+ */
+function updatePostDetails( selectors, to, hiddenClass ) {
+	document.querySelectorAll( selectors ).forEach( element => {
+		if ( to === false ) {
+			element.style.clip = 'rect(1px, 1px, 1px, 1px)';
+			element.style.height = '1px';
+			element.style.overflow = 'hidden';
+			element.style.position = 'absolute';
+			element.style.width = '1px';
+			document.body.classList.add( hiddenClass );
+		} else {
+			element.style.clip = 'auto';
+			element.style.height = 'auto';
+			element.style.overflow = 'auto';
+			element.style.position = 'relative';
+			element.style.width = 'auto';
+			document.body.classList.remove( hiddenClass );
+		}
 	} );
+}
 
-	// Post Details: Date.
-	wp.customize( 'jetpack_content_post_details_date', function ( value ) {
-		value.bind( function ( to ) {
-			if ( false === to ) {
-				$( postDetails.date ).css( {
-					clip: 'rect(1px, 1px, 1px, 1px)',
-					height: '1px',
-					overflow: 'hidden',
-					position: 'absolute',
-					width: '1px',
-				} );
-				$( 'body' ).addClass( 'date-hidden' );
-			} else {
-				$( postDetails.date ).css( {
-					clip: 'auto',
-					height: 'auto',
-					overflow: 'auto',
-					position: 'relative',
-					width: 'auto',
-				} );
-				$( 'body' ).removeClass( 'date-hidden' );
-			}
-		} );
+// Post Details: Date
+wp.customize( 'jetpack_content_post_details_date', function ( value ) {
+	value.bind( function ( to ) {
+		updatePostDetails( postDetails.date, to, 'date-hidden' );
 	} );
+} );
 
-	// Post Details: Categories.
-	wp.customize( 'jetpack_content_post_details_categories', function ( value ) {
-		value.bind( function ( to ) {
-			if ( false === to ) {
-				$( postDetails.categories ).css( {
-					clip: 'rect(1px, 1px, 1px, 1px)',
-					height: '1px',
-					overflow: 'hidden',
-					position: 'absolute',
-					width: '1px',
-				} );
-				$( 'body' ).addClass( 'categories-hidden' );
-			} else {
-				$( postDetails.categories ).css( {
-					clip: 'auto',
-					height: 'auto',
-					overflow: 'auto',
-					position: 'relative',
-					width: 'auto',
-				} );
-				$( 'body' ).removeClass( 'categories-hidden' );
-			}
-		} );
+// Post Details: Categories
+wp.customize( 'jetpack_content_post_details_categories', function ( value ) {
+	value.bind( function ( to ) {
+		updatePostDetails( postDetails.categories, to, 'categories-hidden' );
 	} );
+} );
 
-	// Post Details: Tags.
-	wp.customize( 'jetpack_content_post_details_tags', function ( value ) {
-		value.bind( function ( to ) {
-			if ( false === to ) {
-				$( postDetails.tags ).css( {
-					clip: 'rect(1px, 1px, 1px, 1px)',
-					height: '1px',
-					overflow: 'hidden',
-					position: 'absolute',
-					width: '1px',
-				} );
-				$( 'body' ).addClass( 'tags-hidden' );
-			} else {
-				$( postDetails.tags ).css( {
-					clip: 'auto',
-					height: 'auto',
-					overflow: 'auto',
-					position: 'relative',
-					width: 'auto',
-				} );
-				$( 'body' ).removeClass( 'tags-hidden' );
-			}
-		} );
+// Post Details: Tags
+wp.customize( 'jetpack_content_post_details_tags', function ( value ) {
+	value.bind( function ( to ) {
+		updatePostDetails( postDetails.tags, to, 'tags-hidden' );
 	} );
+} );
 
-	// Post Details: Author.
-	wp.customize( 'jetpack_content_post_details_author', function ( value ) {
-		value.bind( function ( to ) {
-			if ( false === to ) {
-				$( postDetails.author ).css( {
-					clip: 'rect(1px, 1px, 1px, 1px)',
-					height: '1px',
-					overflow: 'hidden',
-					position: 'absolute',
-					width: '1px',
-				} );
-				$( 'body' ).addClass( 'author-hidden' );
-			} else {
-				$( postDetails.author ).css( {
-					clip: 'auto',
-					height: 'auto',
-					overflow: 'auto',
-					position: 'relative',
-					width: 'auto',
-				} );
-				$( 'body' ).removeClass( 'author-hidden' );
-			}
-		} );
+// Post Details: Author
+wp.customize( 'jetpack_content_post_details_author', function ( value ) {
+	value.bind( function ( to ) {
+		updatePostDetails( postDetails.author, to, 'author-hidden' );
 	} );
+} );
 
-	// Post Details: Comment link.
-	wp.customize( 'jetpack_content_post_details_comment', function ( value ) {
-		value.bind( function ( to ) {
-			if ( false === to ) {
-				$( postDetails.comment ).css( {
-					clip: 'rect(1px, 1px, 1px, 1px)',
-					height: '1px',
-					overflow: 'hidden',
-					position: 'absolute',
-					width: '1px',
-				} );
-				$( 'body' ).addClass( 'comment-hidden' );
-			} else {
-				$( postDetails.comment ).css( {
-					clip: 'auto',
-					height: 'auto',
-					overflow: 'auto',
-					position: 'relative',
-					width: 'auto',
-				} );
-				$( 'body' ).removeClass( 'comment-hidden' );
-			}
-		} );
+// Post Details: Comment link
+wp.customize( 'jetpack_content_post_details_comment', function ( value ) {
+	value.bind( function ( to ) {
+		updatePostDetails( postDetails.comment, to, 'comment-hidden' );
 	} );
-} )( jQuery );
+} );
diff --git a/projects/packages/classic-theme-helper/src/content-options/customizer.php b/projects/packages/classic-theme-helper/src/content-options/customizer.php
index 7cbe45cac7a59..b5305c97d0baa 100644
--- a/projects/packages/classic-theme-helper/src/content-options/customizer.php
+++ b/projects/packages/classic-theme-helper/src/content-options/customizer.php
@@ -5,6 +5,8 @@
  * @package automattic/jetpack-classic-theme-helper
  */
 
+use Automattic\Jetpack\Assets;
+
 if ( ! function_exists( 'jetpack_content_options_customize_register' ) ) {
 
 	/**
@@ -493,7 +495,18 @@ function jetpack_content_options_customize_preview_js() {
 		$author       = ( ! empty( $post_details['author'] ) ) ? $post_details['author'] : null;
 		$comment      = ( ! empty( $post_details['comment'] ) ) ? $post_details['comment'] : null;
 
-		wp_enqueue_script( 'jetpack-content-options-customizer', plugins_url( 'customizer.js', __FILE__ ), array( 'jquery', 'customize-preview' ), '1.0', true );
+		Assets::register_script(
+			'jetpack-content-options-customizer',
+			'../../dist/content-options/customizer.js',
+			__FILE__,
+			array(
+				'dependencies' => array(
+					'customize-preview',
+				),
+				'in_footer'    => true,
+				'enqueue'      => true,
+			)
+		);
 
 		wp_localize_script(
 			'jetpack-content-options-customizer',
diff --git a/projects/packages/classic-theme-helper/src/content-options/post-details.php b/projects/packages/classic-theme-helper/src/content-options/post-details.php
index 3e4fbc3f9f526..dc21f60d3b6bb 100644
--- a/projects/packages/classic-theme-helper/src/content-options/post-details.php
+++ b/projects/packages/classic-theme-helper/src/content-options/post-details.php
@@ -60,8 +60,10 @@ function jetpack_post_details_enqueue_scripts() {
 		$css = $elements . ' { clip: rect(1px, 1px, 1px, 1px); height: 1px; position: absolute; overflow: hidden; width: 1px; }';
 
 		// Add the CSS to the stylesheet.
-		// @phan-suppress-next-line PhanTypeArraySuspiciousNullable.
-		wp_add_inline_style( $post_details['stylesheet'], $css );
+
+		if ( is_array( $post_details ) && isset( $post_details['stylesheet'] ) ) {
+			wp_add_inline_style( $post_details['stylesheet'], $css );
+		}
 	}
 	add_action( 'wp_enqueue_scripts', 'jetpack_post_details_enqueue_scripts' );
 
diff --git a/projects/plugins/jetpack/changelog/add-require-content-options-in-classic-theme-helper-package b/projects/plugins/jetpack/changelog/add-require-content-options-in-classic-theme-helper-package
new file mode 100644
index 0000000000000..7a43d9887fd8e
--- /dev/null
+++ b/projects/plugins/jetpack/changelog/add-require-content-options-in-classic-theme-helper-package
@@ -0,0 +1,4 @@
+Significance: patch
+Type: other
+
+Content Options: Ensure the feature is loaded via the Classic Theme Helper package instead of Jetpack module.
diff --git a/projects/plugins/jetpack/modules/theme-tools/content-options.php b/projects/plugins/jetpack/modules/theme-tools/content-options.php
index 14ae4b03957da..ffe312f0645d8 100644
--- a/projects/plugins/jetpack/modules/theme-tools/content-options.php
+++ b/projects/plugins/jetpack/modules/theme-tools/content-options.php
@@ -6,165 +6,179 @@
  * @package automattic/jetpack
  */
 
-/**
- * Content Options.
- *
- * This feature will only be activated for themes that declare their support.
- * This can be done by adding code similar to the following during the
- * 'after_setup_theme' action:
- *
-	add_theme_support( 'jetpack-content-options', array(
-		'blog-display'       => 'content', // the default setting of the theme: 'content', 'excerpt' or array( 'content', 'excerpt' ) for themes mixing both display.
-		'author-bio'         => true, // display or not the author bio: true or false.
-		'author-bio-default' => false, // the default setting of the author bio, if it's being displayed or not: true or false (only required if false).
-		'avatar-default'     => true, // display or not the default avatar for the author bio: true or false.
-		'masonry'            => '.site-main', // a CSS selector matching the elements that triggers a masonry refresh if the theme is using a masonry layout.
-		'post-details'       => array(
-			'stylesheet'        => 'themeslug-style', // name of the theme's stylesheet.
-			'date'              => '.posted-on', // a CSS selector matching the elements that display the post date.
-			'categories'        => '.cat-links', // a CSS selector matching the elements that display the post categories.
-			'tags'              => '.tags-links', // a CSS selector matching the elements that display the post tags.
-			'author'            => '.byline', // a CSS selector matching the elements that display the post author.
-			'comment'           => '.comments-link', // a CSS selector matching the elements that display the comment link.
-		),
-		'featured-images'    => array(
-			'archive'           => true, // enable or not the featured image check for archive pages: true or false.
-			'archive-default'   => false, // the default setting of the featured image on archive pages, if it's being displayed or not: true or false (only required if false).
-			'post'              => true, // enable or not the featured image check for single posts: true or false.
-			'post-default'      => false, // the default setting of the featured image on single posts, if it's being displayed or not: true or false (only required if false).
-			'page'              => true, // enable or not the featured image check for single pages: true or false.
-			'page-default'      => false, // the default setting of the featured image on single pages, if it's being displayed or not: true or false (only required if false).
-			'portfolio'         => true, // enable or not the featured image check for single projects: true or false.
-			'portfolio-default' => false, // the default setting of the featured image on single projects, if it's being displayed or not: true or false (only required if false).
-			'fallback'          => true, // enable or not the featured image fallback: true or false.
-			'fallback-default'  => true, // the default setting for featured image fallbacks: true or false (only required if false)
-		),
-	) );
- */
-
-if ( ! function_exists( 'jetpack_content_options_init' ) ) {
+if ( ! class_exists( '\Automattic\Jetpack\Classic_Theme_Helper\Main' ) ) {
 
 	/**
-	 * Activate the Content Options plugin.
+	 * Content Options.
+	 *
+	 * This feature will only be activated for themes that declare their support.
+	 * This can be done by adding code similar to the following during the
+	 * 'after_setup_theme' action:
 	 *
-	 * @uses current_theme_supports()
+		add_theme_support( 'jetpack-content-options', array(
+			'blog-display'       => 'content', // the default setting of the theme: 'content', 'excerpt' or array( 'content', 'excerpt' ) for themes mixing both display.
+			'author-bio'         => true, // display or not the author bio: true or false.
+			'author-bio-default' => false, // the default setting of the author bio, if it's being displayed or not: true or false (only required if false).
+			'avatar-default'     => true, // display or not the default avatar for the author bio: true or false.
+			'masonry'            => '.site-main', // a CSS selector matching the elements that triggers a masonry refresh if the theme is using a masonry layout.
+			'post-details'       => array(
+				'stylesheet'        => 'themeslug-style', // name of the theme's stylesheet.
+				'date'              => '.posted-on', // a CSS selector matching the elements that display the post date.
+				'categories'        => '.cat-links', // a CSS selector matching the elements that display the post categories.
+				'tags'              => '.tags-links', // a CSS selector matching the elements that display the post tags.
+				'author'            => '.byline', // a CSS selector matching the elements that display the post author.
+				'comment'           => '.comments-link', // a CSS selector matching the elements that display the comment link.
+			),
+			'featured-images'    => array(
+				'archive'           => true, // enable or not the featured image check for archive pages: true or false.
+				'archive-default'   => false, // the default setting of the featured image on archive pages, if it's being displayed or not: true or false (only required if false).
+				'post'              => true, // enable or not the featured image check for single posts: true or false.
+				'post-default'      => false, // the default setting of the featured image on single posts, if it's being displayed or not: true or false (only required if false).
+				'page'              => true, // enable or not the featured image check for single pages: true or false.
+				'page-default'      => false, // the default setting of the featured image on single pages, if it's being displayed or not: true or false (only required if false).
+				'portfolio'         => true, // enable or not the featured image check for single projects: true or false.
+				'portfolio-default' => false, // the default setting of the featured image on single projects, if it's being displayed or not: true or false (only required if false).
+				'fallback'          => true, // enable or not the featured image fallback: true or false.
+				'fallback-default'  => true, // the default setting for featured image fallbacks: true or false (only required if false)
+			),
+		) );
 	 */
-	function jetpack_content_options_init() {
-		// If the theme doesn't support 'jetpack-content-options', don't continue.
-		if ( ! current_theme_supports( 'jetpack-content-options' ) ) {
-			return;
-		}
 
-		// Load the Customizer options.
-		require __DIR__ . '/content-options/customizer.php';
-
-		// Load Blog Display function.
-		require __DIR__ . '/content-options/blog-display.php';
-
-		// Load Author Bio function.
-		require __DIR__ . '/content-options/author-bio.php';
-
-		// Load Post Details function.
-		require __DIR__ . '/content-options/post-details.php';
-
-		// Load Featured Images function.
-		if ( jetpack_featured_images_should_load() ) {
-			require __DIR__ . '/content-options/featured-images.php';
+	if ( ! function_exists( 'jetpack_content_options_init' ) ) {
+
+		/**
+		 * Activate the Content Options plugin.
+		 *
+		 * @deprecated $$next-version$$ Moved to Classic Theme Helper package.
+		 * @uses current_theme_supports()
+		 */
+		function jetpack_content_options_init() {
+			_deprecated_function( __FUNCTION__, 'jetpack-$$next-version$$' );
+			// If the theme doesn't support 'jetpack-content-options', don't continue.
+			if ( ! current_theme_supports( 'jetpack-content-options' ) ) {
+				return;
+			}
+
+			// Load the Customizer options.
+			require __DIR__ . '/content-options/customizer.php';
+
+			// Load Blog Display function.
+			require __DIR__ . '/content-options/blog-display.php';
+
+			// Load Author Bio function.
+			require __DIR__ . '/content-options/author-bio.php';
+
+			// Load Post Details function.
+			require __DIR__ . '/content-options/post-details.php';
+
+			// Load Featured Images function.
+			if ( jetpack_featured_images_should_load() ) {
+				require __DIR__ . '/content-options/featured-images.php';
+			}
+
+			// Load Featured Images Fallback function.
+			if ( jetpack_featured_images_fallback_should_load() ) {
+				require __DIR__ . '/content-options/featured-images-fallback.php';
+			}
 		}
+		add_action( 'init', 'jetpack_content_options_init' );
 
-		// Load Featured Images Fallback function.
-		if ( jetpack_featured_images_fallback_should_load() ) {
-			require __DIR__ . '/content-options/featured-images-fallback.php';
-		}
 	}
-	add_action( 'init', 'jetpack_content_options_init' );
-
-}
 
-if ( ! function_exists( 'jetpack_featured_images_get_settings' ) ) {
+	if ( ! function_exists( 'jetpack_featured_images_get_settings' ) ) {
+
+		/**
+		 * Get featured images settings using the jetpack-content-options theme support.
+		 *
+		 * @deprecated $$next-version$$ Moved to Classic Theme Helper package.
+		 */
+		function jetpack_featured_images_get_settings() {
+			_deprecated_function( __FUNCTION__, 'jetpack-$$next-version$$' );
+			$options = get_theme_support( 'jetpack-content-options' );
+
+			$featured_images = ( ! empty( $options[0]['featured-images'] ) ) ? $options[0]['featured-images'] : null;
+
+			$settings = array(
+				'archive'           => ( ! empty( $featured_images['archive'] ) ) ? $featured_images['archive'] : null,
+				'post'              => ( ! empty( $featured_images['post'] ) ) ? $featured_images['post'] : null,
+				'page'              => ( ! empty( $featured_images['page'] ) ) ? $featured_images['page'] : null,
+				'portfolio'         => ( ! empty( $featured_images['portfolio'] ) ) ? $featured_images['portfolio'] : null,
+				'archive-default'   => ( isset( $featured_images['archive-default'] ) && false === $featured_images['archive-default'] ) ? '' : 1,
+				'post-default'      => ( isset( $featured_images['post-default'] ) && false === $featured_images['post-default'] ) ? '' : 1,
+				'page-default'      => ( isset( $featured_images['page-default'] ) && false === $featured_images['page-default'] ) ? '' : 1,
+				'portfolio-default' => ( isset( $featured_images['portfolio-default'] ) && false === $featured_images['portfolio-default'] ) ? '' : 1,
+				'fallback'          => ( ! empty( $featured_images['fallback'] ) ) ? $featured_images['fallback'] : null,
+				'fallback-default'  => ( isset( $featured_images['fallback-default'] ) && false === $featured_images['fallback-default'] ) ? '' : 1,
+			);
+
+			$settings = array_merge(
+				$settings,
+				array(
+					'archive-option'   => get_option( 'jetpack_content_featured_images_archive', $settings['archive-default'] ),
+					'post-option'      => get_option( 'jetpack_content_featured_images_post', $settings['post-default'] ),
+					'page-option'      => get_option( 'jetpack_content_featured_images_page', $settings['page-default'] ),
+					'portfolio-option' => get_option( 'jetpack_content_featured_images_portfolio', $settings['portfolio-default'] ),
+					'fallback-option'  => get_option( 'jetpack_content_featured_images_fallback', $settings['fallback-default'] ),
+				)
+			);
+
+			return $settings;
+		}
 
-	/**
-	 * Get featured images settings using the jetpack-content-options theme support.
-	 */
-	function jetpack_featured_images_get_settings() {
-		$options = get_theme_support( 'jetpack-content-options' );
-
-		$featured_images = ( ! empty( $options[0]['featured-images'] ) ) ? $options[0]['featured-images'] : null;
-
-		$settings = array(
-			'archive'           => ( ! empty( $featured_images['archive'] ) ) ? $featured_images['archive'] : null,
-			'post'              => ( ! empty( $featured_images['post'] ) ) ? $featured_images['post'] : null,
-			'page'              => ( ! empty( $featured_images['page'] ) ) ? $featured_images['page'] : null,
-			'portfolio'         => ( ! empty( $featured_images['portfolio'] ) ) ? $featured_images['portfolio'] : null,
-			'archive-default'   => ( isset( $featured_images['archive-default'] ) && false === $featured_images['archive-default'] ) ? '' : 1,
-			'post-default'      => ( isset( $featured_images['post-default'] ) && false === $featured_images['post-default'] ) ? '' : 1,
-			'page-default'      => ( isset( $featured_images['page-default'] ) && false === $featured_images['page-default'] ) ? '' : 1,
-			'portfolio-default' => ( isset( $featured_images['portfolio-default'] ) && false === $featured_images['portfolio-default'] ) ? '' : 1,
-			'fallback'          => ( ! empty( $featured_images['fallback'] ) ) ? $featured_images['fallback'] : null,
-			'fallback-default'  => ( isset( $featured_images['fallback-default'] ) && false === $featured_images['fallback-default'] ) ? '' : 1,
-		);
-
-		$settings = array_merge(
-			$settings,
-			array(
-				'archive-option'   => get_option( 'jetpack_content_featured_images_archive', $settings['archive-default'] ),
-				'post-option'      => get_option( 'jetpack_content_featured_images_post', $settings['post-default'] ),
-				'page-option'      => get_option( 'jetpack_content_featured_images_page', $settings['page-default'] ),
-				'portfolio-option' => get_option( 'jetpack_content_featured_images_portfolio', $settings['portfolio-default'] ),
-				'fallback-option'  => get_option( 'jetpack_content_featured_images_fallback', $settings['fallback-default'] ),
-			)
-		);
-
-		return $settings;
 	}
 
-}
+	if ( ! function_exists( 'jetpack_featured_images_should_load' ) ) {
 
-if ( ! function_exists( 'jetpack_featured_images_should_load' ) ) {
-
-	/**
-	 * Determine if the Jetpack Featured Images should be load.
-	 */
-	function jetpack_featured_images_should_load() {
-		// If the theme doesn't support post thumbnails, don't continue.
-		if ( ! current_theme_supports( 'post-thumbnails' ) ) {
-			return false;
-		}
+		/**
+		 * Determine if the Jetpack Featured Images should be load.
+		 *
+		 * @deprecated $$next-version$$ Moved to Classic Theme Helper package.
+		 */
+		function jetpack_featured_images_should_load() {
+			_deprecated_function( __FUNCTION__, 'jetpack-$$next-version$$' );
+			// If the theme doesn't support post thumbnails, don't continue.
+			if ( ! current_theme_supports( 'post-thumbnails' ) ) {
+				return false;
+			}
 
-		$opts = jetpack_featured_images_get_settings();
+			$opts = jetpack_featured_images_get_settings();
 
-		// If the theme doesn't support archive, post and page or if all the options are ticked and we aren't in the customizer, don't continue.
-		if (
+			// If the theme doesn't support archive, post and page or if all the options are ticked and we aren't in the customizer, don't continue.
+			if (
 			( true !== $opts['archive'] && true !== $opts['post'] && true !== $opts['page'] )
 			|| ( 1 === $opts['archive-option'] && 1 === $opts['post-option'] && 1 === $opts['page-option'] && ! is_customize_preview() )
-		) {
-			return false;
+			) {
+				return false;
+			}
+
+			return true;
 		}
 
-		return true;
 	}
 
-}
+	if ( ! function_exists( 'jetpack_featured_images_fallback_should_load' ) ) {
 
-if ( ! function_exists( 'jetpack_featured_images_fallback_should_load' ) ) {
+		/**
+		 * Determine if the Jetpack Featured Images fallback should load.
+		 *
+		 * @deprecated $$next-version$$ Moved to Classic Theme Helper package.
+		 */
+		function jetpack_featured_images_fallback_should_load() {
+			_deprecated_function( __FUNCTION__, 'jetpack-$$next-version$$' );
+			// If the theme doesn't support post thumbnails, don't continue.
+			if ( ! current_theme_supports( 'post-thumbnails' ) ) {
+				return false;
+			}
 
-	/**
-	 * Determine if the Jetpack Featured Images fallback should load.
-	 */
-	function jetpack_featured_images_fallback_should_load() {
-		// If the theme doesn't support post thumbnails, don't continue.
-		if ( ! current_theme_supports( 'post-thumbnails' ) ) {
-			return false;
-		}
+			$opts = jetpack_featured_images_get_settings();
 
-		$opts = jetpack_featured_images_get_settings();
+			// If the theme doesn't support fallback, don't continue.
+			if ( true !== $opts['fallback'] ) {
+				return false;
+			}
 
-		// If the theme doesn't support fallback, don't continue.
-		if ( true !== $opts['fallback'] ) {
-			return false;
+			return true;
 		}
 
-		return true;
 	}
-
 }
diff --git a/projects/plugins/jetpack/modules/theme-tools/content-options/author-bio.php b/projects/plugins/jetpack/modules/theme-tools/content-options/author-bio.php
index 2aab1a70181aa..e146e05afe51e 100644
--- a/projects/plugins/jetpack/modules/theme-tools/content-options/author-bio.php
+++ b/projects/plugins/jetpack/modules/theme-tools/content-options/author-bio.php
@@ -9,8 +9,11 @@
 
 	/**
 	 * The function to display Author Bio in a theme.
+	 *
+	 * @deprecated $$next-version$$ Moved to Classic Theme Helper package.
 	 */
 	function jetpack_author_bio() {
+		_deprecated_function( __FUNCTION__, 'jetpack-$$next-version$$' );
 		// If the theme doesn't support 'jetpack-content-options', don't continue.
 		if ( ! current_theme_supports( 'jetpack-content-options' ) ) {
 			return;
@@ -92,11 +95,12 @@ function jetpack_author_bio() {
 	/**
 	 * Checks to see if the specified email address has a Gravatar image.
 	 *
+	 * @deprecated $$next-version$$ Moved to Classic Theme Helper package.
 	 * @param string $email The email of the address of the user to check.
 	 * @return bool Whether or not the user has a gravatar
 	 */
 	function jetpack_has_gravatar( $email ) {
-
+		_deprecated_function( __FUNCTION__, 'jetpack-$$next-version$$' );
 		$url     = get_avatar_url( $email, array( 'default' => '404' ) );
 		$headers = get_headers( $url );
 
diff --git a/projects/plugins/jetpack/modules/theme-tools/content-options/blog-display.php b/projects/plugins/jetpack/modules/theme-tools/content-options/blog-display.php
index 4a33aff67dfde..3e87f5816cad2 100644
--- a/projects/plugins/jetpack/modules/theme-tools/content-options/blog-display.php
+++ b/projects/plugins/jetpack/modules/theme-tools/content-options/blog-display.php
@@ -35,11 +35,13 @@
 	/**
 	 * Apply Content filters.
 	 *
+	 * @deprecated $$next-version$$ Moved to Classic Theme Helper package.
 	 * @since 9.7.0 Deprecated $content parameter.
 	 *
 	 * @param string $content Post content. Deprecated.
 	 */
 	function jetpack_blog_display_custom_excerpt( $content = '' ) {
+		_deprecated_function( __FUNCTION__, 'jetpack-$$next-version$$' );
 		if ( ! empty( $content ) ) {
 			_doing_it_wrong(
 				'jetpack_blog_display_custom_excerpt',
@@ -97,9 +99,12 @@ function jetpack_blog_display_custom_excerpt( $content = '' ) {
 	/**
 	 * Display Excerpt instead of Content.
 	 *
+	 * @deprecated $$next-version$$ Moved to Classic Theme Helper package.
+	 *
 	 * @param string $content Post content.
 	 */
 	function jetpack_the_content_to_the_excerpt( $content ) {
+		_deprecated_function( __FUNCTION__, 'jetpack-$$next-version$$' );
 		if ( ( is_home() || is_archive() ) && ! is_post_type_archive( array( 'jetpack-testimonial', 'jetpack-portfolio', 'product' ) ) ) {
 			if ( post_password_required() ) {
 				$excerpt = sprintf( '<p>%s</p>', esc_html__( 'There is no excerpt because this is a protected post.', 'jetpack' ) );
@@ -121,9 +126,12 @@ function jetpack_the_content_to_the_excerpt( $content ) {
 	/**
 	 * Display Content instead of Excerpt.
 	 *
+	 * @deprecated $$next-version$$ Moved to Classic Theme Helper package.
+	 *
 	 * @param string $content The post excerpt.
 	 */
 	function jetpack_the_excerpt_to_the_content( $content ) {
+		_deprecated_function( __FUNCTION__, 'jetpack-$$next-version$$' );
 		if ( ( is_home() || is_archive() ) && ! is_post_type_archive( array( 'jetpack-testimonial', 'jetpack-portfolio', 'product' ) ) ) {
 			ob_start();
 			the_content(
@@ -152,9 +160,11 @@ function jetpack_the_excerpt_to_the_content( $content ) {
 	/**
 	 * Display both Content and Excerpt instead of Content in the Customizer so live preview can switch between them.
 	 *
+	 * @deprecated $$next-version$$ Moved to Classic Theme Helper package.
 	 * @param string $content The post content.
 	 */
 	function jetpack_the_content_customizer( $content ) {
+		_deprecated_function( __FUNCTION__, 'jetpack-$$next-version$$' );
 		$class = jetpack_the_content_customizer_class();
 		if ( ( is_home() || is_archive() ) && ! is_post_type_archive( array( 'jetpack-testimonial', 'jetpack-portfolio', 'product' ) ) ) {
 			if ( post_password_required() ) {
@@ -177,9 +187,11 @@ function jetpack_the_content_customizer( $content ) {
 	/**
 	 * Display both Content and Excerpt instead of Excerpt in the Customizer so live preview can switch between them.
 	 *
+	 * @deprecated $$next-version$$ Moved to Classic Theme Helper package.
 	 * @param string $excerpt The post excerpt.
 	 */
 	function jetpack_the_excerpt_customizer( $excerpt ) {
+		_deprecated_function( __FUNCTION__, 'jetpack-$$next-version$$' );
 		if ( ( is_home() || is_archive() ) && ! is_post_type_archive( array( 'jetpack-testimonial', 'jetpack-portfolio', 'product' ) ) ) {
 			ob_start();
 			the_content(
@@ -212,9 +224,11 @@ function jetpack_the_excerpt_customizer( $excerpt ) {
 	/**
 	 * Display Content instead of Excerpt in the Customizer when theme uses a 'Mixed' display.
 	 *
+	 * @deprecated $$next-version$$ Moved to Classic Theme Helper package.
 	 * @param string $content The post excerpt.
 	 */
 	function jetpack_the_excerpt_mixed_customizer( $content ) {
+		_deprecated_function( __FUNCTION__, 'jetpack-$$next-version$$' );
 		if ( ( is_home() || is_archive() ) && ! is_post_type_archive( array( 'jetpack-testimonial', 'jetpack-portfolio', 'product' ) ) ) {
 			jetpack_the_content_customizer_class( 'output-the-excerpt' );
 			ob_start();
@@ -232,9 +246,11 @@ function jetpack_the_excerpt_mixed_customizer( $content ) {
 	 * Returns a class value, `output-the-content` by default.
 	 * Used for themes with a 'Mixed' Blog Display so we can tell which output is by default.
 	 *
+	 * @deprecated $$next-version$$ Moved to Classic Theme Helper package.
 	 * @param string|null $new_class CSS class added to content container.
 	 */
 	function jetpack_the_content_customizer_class( $new_class = null ) {
+		_deprecated_function( __FUNCTION__, 'jetpack-$$next-version$$' );
 		static $class;
 		if ( isset( $new_class ) ) {
 			// Assign a new class and return.
diff --git a/projects/plugins/jetpack/modules/theme-tools/content-options/customizer.js b/projects/plugins/jetpack/modules/theme-tools/content-options/customizer.js
index 5e383bc3ce327..6860ee0c21afb 100644
--- a/projects/plugins/jetpack/modules/theme-tools/content-options/customizer.js
+++ b/projects/plugins/jetpack/modules/theme-tools/content-options/customizer.js
@@ -8,210 +8,141 @@
  * Contains handlers to make Theme Customizer preview reload changes asynchronously.
  */
 
-( function ( $ ) {
-	// Blog Display
-	wp.customize( 'jetpack_content_blog_display', function ( value ) {
-		if ( 'content' === blogDisplay.display ) {
-			$( '.jetpack-blog-display.jetpack-the-excerpt' ).css( {
-				clip: 'rect(1px, 1px, 1px, 1px)',
-				position: 'absolute',
-			} );
-			$( '.jetpack-blog-display.jetpack-the-content' ).css( {
-				clip: 'auto',
-				position: 'relative',
-			} );
-		} else if ( 'excerpt' === blogDisplay.display ) {
-			$( '.jetpack-blog-display.jetpack-the-content' ).css( {
+/**
+ * Function to apply styles to elements based on the display type
+ * @param {object} selectors - HTML selectors which styles will apply to.
+ * @param {object} styles    - Styles to be applied to selectors.
+ */
+function applyStyles( selectors, styles ) {
+	document.querySelectorAll( selectors ).forEach( el => {
+		for ( const [ key, value ] of Object.entries( styles ) ) {
+			el.style[ key ] = value;
+		}
+	} );
+}
+
+// Blog Display
+wp.customize( 'jetpack_content_blog_display', function ( value ) {
+	/**
+	 * Updates the blog display based on the selected option.
+	 * @param {string} to - Content display option.
+	 */
+	function updateBlogDisplay( to ) {
+		const contentSelectors = '.jetpack-blog-display.jetpack-the-content';
+		const excerptSelectors = '.jetpack-blog-display.jetpack-the-excerpt';
+		const featuredContentSelectors = '.featured-content .jetpack-blog-display';
+
+		if ( to === 'content' ) {
+			applyStyles( `${ excerptSelectors }, ${ featuredContentSelectors }.jetpack-the-excerpt`, {
 				clip: 'rect(1px, 1px, 1px, 1px)',
 				position: 'absolute',
 			} );
-			$( '.jetpack-blog-display.jetpack-the-excerpt' ).css( {
+			applyStyles( `${ contentSelectors }, ${ featuredContentSelectors }.jetpack-the-content`, {
 				clip: 'auto',
 				position: 'relative',
 			} );
-		} else if ( 'mixed' === blogDisplay.display ) {
-			$( '.jetpack-blog-display.jetpack-the-content.output-the-content' ).css( {
-				clip: 'auto',
-				position: 'relative',
-			} );
-			$( '.jetpack-blog-display.jetpack-the-excerpt.output-the-content' ).css( {
-				clip: 'rect(1px, 1px, 1px, 1px)',
-				position: 'absolute',
-			} );
-			$( '.jetpack-blog-display.jetpack-the-content.output-the-excerpt' ).css( {
+		} else if ( to === 'excerpt' ) {
+			applyStyles( `${ contentSelectors }, ${ featuredContentSelectors }.jetpack-the-content`, {
 				clip: 'rect(1px, 1px, 1px, 1px)',
 				position: 'absolute',
 			} );
-			$( '.jetpack-blog-display.jetpack-the-excerpt.output-the-excerpt' ).css( {
+			applyStyles( `${ excerptSelectors }, ${ featuredContentSelectors }.jetpack-the-excerpt`, {
 				clip: 'auto',
 				position: 'relative',
 			} );
-		}
-		value.bind( function ( to ) {
-			if ( 'content' === to ) {
-				$( '.jetpack-blog-display.jetpack-the-excerpt' ).css( {
-					clip: 'rect(1px, 1px, 1px, 1px)',
-					position: 'absolute',
-				} );
-				$( '.jetpack-blog-display.jetpack-the-content' ).css( {
-					clip: 'auto',
-					position: 'relative',
-				} );
-			} else if ( 'excerpt' === to ) {
-				$( '.jetpack-blog-display.jetpack-the-content' ).css( {
-					clip: 'rect(1px, 1px, 1px, 1px)',
-					position: 'absolute',
-				} );
-				$( '.jetpack-blog-display.jetpack-the-excerpt' ).css( {
-					clip: 'auto',
-					position: 'relative',
-				} );
-			} else if ( 'mixed' === to ) {
-				$( '.jetpack-blog-display.jetpack-the-content.output-the-content' ).css( {
+		} else if ( to === 'mixed' ) {
+			applyStyles(
+				`${ contentSelectors }.output-the-content, ${ featuredContentSelectors }.jetpack-the-content.output-the-content`,
+				{
 					clip: 'auto',
 					position: 'relative',
-				} );
-				$( '.jetpack-blog-display.jetpack-the-excerpt.output-the-content' ).css( {
-					clip: 'rect(1px, 1px, 1px, 1px)',
-					position: 'absolute',
-				} );
-				$( '.jetpack-blog-display.jetpack-the-content.output-the-excerpt' ).css( {
+				}
+			);
+			applyStyles(
+				`${ excerptSelectors }.output-the-content, ${ contentSelectors }.output-the-excerpt, ${ featuredContentSelectors }.jetpack-the-excerpt.output-the-content, ${ featuredContentSelectors }.jetpack-the-content.output-the-excerpt`,
+				{
 					clip: 'rect(1px, 1px, 1px, 1px)',
 					position: 'absolute',
-				} );
-				$( '.jetpack-blog-display.jetpack-the-excerpt.output-the-excerpt' ).css( {
+				}
+			);
+			applyStyles(
+				`${ excerptSelectors }.output-the-excerpt, ${ featuredContentSelectors }.jetpack-the-excerpt.output-the-excerpt`,
+				{
 					clip: 'auto',
 					position: 'relative',
-				} );
-			}
-			if ( blogDisplay.masonry ) {
-				$( blogDisplay.masonry ).masonry();
+				}
+			);
+		}
+
+		if ( blogDisplay.masonry ) {
+			const masonryElement = document.querySelector( blogDisplay.masonry );
+			if ( masonryElement ) {
+				masonryElement.masonry();
 			}
-		} );
+		}
+	}
+
+	updateBlogDisplay( blogDisplay.display );
+	value.bind( updateBlogDisplay );
+} );
+
+/**
+ * Function to update post details visibility
+ * @param {object} selectors   - HTML selectors which styles will apply to.
+ * @param {string} to          - Content display option.
+ * @param {string} hiddenClass - Class to be added to the body when the post details are hidden.
+ */
+function updatePostDetails( selectors, to, hiddenClass ) {
+	document.querySelectorAll( selectors ).forEach( element => {
+		if ( to === false ) {
+			element.style.clip = 'rect(1px, 1px, 1px, 1px)';
+			element.style.height = '1px';
+			element.style.overflow = 'hidden';
+			element.style.position = 'absolute';
+			element.style.width = '1px';
+			document.body.classList.add( hiddenClass );
+		} else {
+			element.style.clip = 'auto';
+			element.style.height = 'auto';
+			element.style.overflow = 'auto';
+			element.style.position = 'relative';
+			element.style.width = 'auto';
+			document.body.classList.remove( hiddenClass );
+		}
 	} );
+}
 
-	// Post Details: Date.
-	wp.customize( 'jetpack_content_post_details_date', function ( value ) {
-		value.bind( function ( to ) {
-			if ( false === to ) {
-				$( postDetails.date ).css( {
-					clip: 'rect(1px, 1px, 1px, 1px)',
-					height: '1px',
-					overflow: 'hidden',
-					position: 'absolute',
-					width: '1px',
-				} );
-				$( 'body' ).addClass( 'date-hidden' );
-			} else {
-				$( postDetails.date ).css( {
-					clip: 'auto',
-					height: 'auto',
-					overflow: 'auto',
-					position: 'relative',
-					width: 'auto',
-				} );
-				$( 'body' ).removeClass( 'date-hidden' );
-			}
-		} );
+// Post Details: Date
+wp.customize( 'jetpack_content_post_details_date', function ( value ) {
+	value.bind( function ( to ) {
+		updatePostDetails( postDetails.date, to, 'date-hidden' );
 	} );
+} );
 
-	// Post Details: Categories.
-	wp.customize( 'jetpack_content_post_details_categories', function ( value ) {
-		value.bind( function ( to ) {
-			if ( false === to ) {
-				$( postDetails.categories ).css( {
-					clip: 'rect(1px, 1px, 1px, 1px)',
-					height: '1px',
-					overflow: 'hidden',
-					position: 'absolute',
-					width: '1px',
-				} );
-				$( 'body' ).addClass( 'categories-hidden' );
-			} else {
-				$( postDetails.categories ).css( {
-					clip: 'auto',
-					height: 'auto',
-					overflow: 'auto',
-					position: 'relative',
-					width: 'auto',
-				} );
-				$( 'body' ).removeClass( 'categories-hidden' );
-			}
-		} );
+// Post Details: Categories
+wp.customize( 'jetpack_content_post_details_categories', function ( value ) {
+	value.bind( function ( to ) {
+		updatePostDetails( postDetails.categories, to, 'categories-hidden' );
 	} );
+} );
 
-	// Post Details: Tags.
-	wp.customize( 'jetpack_content_post_details_tags', function ( value ) {
-		value.bind( function ( to ) {
-			if ( false === to ) {
-				$( postDetails.tags ).css( {
-					clip: 'rect(1px, 1px, 1px, 1px)',
-					height: '1px',
-					overflow: 'hidden',
-					position: 'absolute',
-					width: '1px',
-				} );
-				$( 'body' ).addClass( 'tags-hidden' );
-			} else {
-				$( postDetails.tags ).css( {
-					clip: 'auto',
-					height: 'auto',
-					overflow: 'auto',
-					position: 'relative',
-					width: 'auto',
-				} );
-				$( 'body' ).removeClass( 'tags-hidden' );
-			}
-		} );
+// Post Details: Tags
+wp.customize( 'jetpack_content_post_details_tags', function ( value ) {
+	value.bind( function ( to ) {
+		updatePostDetails( postDetails.tags, to, 'tags-hidden' );
 	} );
+} );
 
-	// Post Details: Author.
-	wp.customize( 'jetpack_content_post_details_author', function ( value ) {
-		value.bind( function ( to ) {
-			if ( false === to ) {
-				$( postDetails.author ).css( {
-					clip: 'rect(1px, 1px, 1px, 1px)',
-					height: '1px',
-					overflow: 'hidden',
-					position: 'absolute',
-					width: '1px',
-				} );
-				$( 'body' ).addClass( 'author-hidden' );
-			} else {
-				$( postDetails.author ).css( {
-					clip: 'auto',
-					height: 'auto',
-					overflow: 'auto',
-					position: 'relative',
-					width: 'auto',
-				} );
-				$( 'body' ).removeClass( 'author-hidden' );
-			}
-		} );
+// Post Details: Author
+wp.customize( 'jetpack_content_post_details_author', function ( value ) {
+	value.bind( function ( to ) {
+		updatePostDetails( postDetails.author, to, 'author-hidden' );
 	} );
+} );
 
-	// Post Details: Comment link.
-	wp.customize( 'jetpack_content_post_details_comment', function ( value ) {
-		value.bind( function ( to ) {
-			if ( false === to ) {
-				$( postDetails.comment ).css( {
-					clip: 'rect(1px, 1px, 1px, 1px)',
-					height: '1px',
-					overflow: 'hidden',
-					position: 'absolute',
-					width: '1px',
-				} );
-				$( 'body' ).addClass( 'comment-hidden' );
-			} else {
-				$( postDetails.comment ).css( {
-					clip: 'auto',
-					height: 'auto',
-					overflow: 'auto',
-					position: 'relative',
-					width: 'auto',
-				} );
-				$( 'body' ).removeClass( 'comment-hidden' );
-			}
-		} );
+// Post Details: Comment link
+wp.customize( 'jetpack_content_post_details_comment', function ( value ) {
+	value.bind( function ( to ) {
+		updatePostDetails( postDetails.comment, to, 'comment-hidden' );
 	} );
-} )( jQuery );
+} );
diff --git a/projects/plugins/jetpack/modules/theme-tools/content-options/customizer.php b/projects/plugins/jetpack/modules/theme-tools/content-options/customizer.php
index df416e518c7ec..3e278e9f426a4 100644
--- a/projects/plugins/jetpack/modules/theme-tools/content-options/customizer.php
+++ b/projects/plugins/jetpack/modules/theme-tools/content-options/customizer.php
@@ -10,9 +10,12 @@
 	/**
 	 * Add Content section to the Theme Customizer.
 	 *
+	 * @deprecated $$next-version$$ Moved to Classic Theme Helper package.
+	 *
 	 * @param WP_Customize_Manager $wp_customize Theme Customizer object.
 	 */
 	function jetpack_content_options_customize_register( $wp_customize ) {
+		_deprecated_function( __FUNCTION__, 'jetpack-$$next-version$$' );
 		$options      = get_theme_support( 'jetpack-content-options' );
 		$blog_display = ( ! empty( $options[0]['blog-display'] ) ) ? $options[0]['blog-display'] : null;
 		$blog_display = preg_grep( '/^(content|excerpt)$/', (array) $blog_display );
@@ -436,8 +439,11 @@ public function render_content() { // phpcs:ignore MediaWiki.Usage.NestedFunctio
 
 	/**
 	 * Return whether the theme supports Post Thumbnails.
+	 *
+	 * @deprecated $$next-version$$ Moved to Classic Theme Helper package.
 	 */
 	function jetpack_post_thumbnail_supports() {
+		_deprecated_function( __FUNCTION__, 'jetpack-$$next-version$$' );
 		return ( current_theme_supports( 'post-thumbnails' ) );
 	}
 
@@ -448,10 +454,12 @@ function jetpack_post_thumbnail_supports() {
 	/**
 	 * Sanitize the checkbox.
 	 *
+	 * @deprecated $$next-version$$ Moved to Classic Theme Helper package.
 	 * @param int $input The unsanitized value from the setting.
 	 * @return boolean|string
 	 */
 	function jetpack_content_options_sanitize_checkbox( $input ) {
+		_deprecated_function( __FUNCTION__, 'jetpack-$$next-version$$' );
 		return ( 1 === (int) $input ) ? 1 : '';
 	}
 
@@ -462,10 +470,12 @@ function jetpack_content_options_sanitize_checkbox( $input ) {
 	/**
 	 * Sanitize the Display value.
 	 *
+	 * @deprecated $$next-version$$ Moved to Classic Theme Helper package.
 	 * @param string $display The unsanitized value from the setting.
 	 * @return string
 	 */
 	function jetpack_content_options_sanitize_blog_display( $display ) {
+		_deprecated_function( __FUNCTION__, 'jetpack-$$next-version$$' );
 		if ( ! in_array( $display, array( 'content', 'excerpt', 'mixed' ), true ) ) {
 			$display = 'content';
 		}
@@ -478,8 +488,11 @@ function jetpack_content_options_sanitize_blog_display( $display ) {
 
 	/**
 	 * Binds JS handlers to make Theme Customizer preview reload changes asynchronously.
+	 *
+	 * @deprecated $$next-version$$ Moved to Classic Theme Helper package.
 	 */
 	function jetpack_content_options_customize_preview_js() {
+		_deprecated_function( __FUNCTION__, 'jetpack-$$next-version$$' );
 		$options      = get_theme_support( 'jetpack-content-options' );
 		$blog_display = ( ! empty( $options[0]['blog-display'] ) ) ? $options[0]['blog-display'] : null;
 		$blog_display = preg_grep( '/^(content|excerpt)$/', (array) $blog_display );
diff --git a/projects/plugins/jetpack/modules/theme-tools/content-options/featured-images-fallback.php b/projects/plugins/jetpack/modules/theme-tools/content-options/featured-images-fallback.php
index 350862899186d..39bcf238ee14d 100644
--- a/projects/plugins/jetpack/modules/theme-tools/content-options/featured-images-fallback.php
+++ b/projects/plugins/jetpack/modules/theme-tools/content-options/featured-images-fallback.php
@@ -12,6 +12,7 @@
 	 * Featured Image then first image from the_content HTML
 	 * and filter the post_thumbnail_html
 	 *
+	 * @deprecated $$next-version$$ Moved to Classic Theme Helper package.
 	 * @param string       $html              The HTML for the image markup.
 	 * @param int          $post_id           The post ID to check.
 	 * @param int          $post_thumbnail_id The ID of the featured image.
@@ -21,6 +22,7 @@
 	 * @return string      $html              Thumbnail image with markup.
 	 */
 	function jetpack_featured_images_fallback_get_image( $html, $post_id, $post_thumbnail_id, $size, $attr ) { // phpcs:ignore VariableAnalysis.CodeAnalysis.VariableAnalysis.UnusedVariable
+		_deprecated_function( __FUNCTION__, 'jetpack-$$next-version$$' );
 		$opts = jetpack_featured_images_get_settings();
 
 		if ( ! empty( $html ) || (bool) 1 !== (bool) $opts['fallback-option'] ) {
@@ -141,6 +143,7 @@ function jetpack_featured_images_fallback_get_image( $html, $post_id, $post_thum
 	 * Get URL of one image from a specified post in the following order:
 	 * Featured Image then first image from the_content HTML
 	 *
+	 * @deprecated $$next-version$$ Moved to Classic Theme Helper package.
 	 * @param int    $post_id           The post ID to check.
 	 * @param int    $post_thumbnail_id The ID of the featured image.
 	 * @param string $size              The image size to return, defaults to 'post-thumbnail'.
@@ -148,6 +151,7 @@ function jetpack_featured_images_fallback_get_image( $html, $post_id, $post_thum
 	 * @return string|null $image_src         The URL of the thumbnail image.
 	 */
 	function jetpack_featured_images_fallback_get_image_src( $post_id, $post_thumbnail_id, $size ) {
+		_deprecated_function( __FUNCTION__, 'jetpack-$$next-version$$' );
 		$image_src = wp_get_attachment_image_src( $post_thumbnail_id, $size );
 		$image_src = ( ! empty( $image_src[0] ) ) ? $image_src[0] : null;
 		$opts      = jetpack_featured_images_get_settings();
@@ -205,11 +209,13 @@ function jetpack_featured_images_fallback_get_image_src( $post_id, $post_thumbna
 	/**
 	 * Check if post has an image attached, including a fallback.
 	 *
+	 * @deprecated $$next-version$$ Moved to Classic Theme Helper package.
 	 * @param  int $post The post ID to check.
 	 *
 	 * @return bool
 	 */
 	function jetpack_has_featured_image( $post = null ) {
+		_deprecated_function( __FUNCTION__, 'jetpack-$$next-version$$' );
 		return (bool) get_the_post_thumbnail( $post );
 	}
 
@@ -220,6 +226,7 @@ function jetpack_has_featured_image( $post = null ) {
 	/**
 	 * Adds custom class to the array of post classes.
 	 *
+	 * @deprecated $$next-version$$ Moved to Classic Theme Helper package.
 	 * @param array $classes Classes for the post element.
 	 * @param array $class   Optional. Comma separated list of additional classes.
 	 * @param array $post_id Unique The post ID to check.
@@ -227,6 +234,7 @@ function jetpack_has_featured_image( $post = null ) {
 	 * @return array $classes
 	 */
 	function jetpack_featured_images_post_class( $classes, $class, $post_id ) {
+		_deprecated_function( __FUNCTION__, 'jetpack-$$next-version$$' );
 		$post_password_required = post_password_required( $post_id );
 		$opts                   = jetpack_featured_images_get_settings();
 
diff --git a/projects/plugins/jetpack/modules/theme-tools/content-options/featured-images.php b/projects/plugins/jetpack/modules/theme-tools/content-options/featured-images.php
index 95af5926aedef..e01457588edcc 100644
--- a/projects/plugins/jetpack/modules/theme-tools/content-options/featured-images.php
+++ b/projects/plugins/jetpack/modules/theme-tools/content-options/featured-images.php
@@ -10,11 +10,13 @@
 	/**
 	 * The function to prevent for Featured Images to be displayed in a theme.
 	 *
+	 * @deprecated $$next-version$$ Moved to Classic Theme Helper package.
 	 * @param array  $metadata Post metadata.
 	 * @param int    $object_id Post ID.
 	 * @param string $meta_key Metadata key.
 	 */
 	function jetpack_featured_images_remove_post_thumbnail( $metadata, $object_id, $meta_key ) {
+		_deprecated_function( __FUNCTION__, 'jetpack-$$next-version$$' );
 		$opts = jetpack_featured_images_get_settings();
 
 		/**
@@ -93,8 +95,11 @@ function jetpack_featured_images_remove_post_thumbnail( $metadata, $object_id, $
 
 	/**
 	 * Check if we are in a WooCommerce Product in order to exclude it from the is_single check.
+	 *
+	 * @deprecated $$next-version$$ Moved to Classic Theme Helper package.
 	 */
 	function jetpack_is_product() {
+		_deprecated_function( __FUNCTION__, 'jetpack-$$next-version$$' );
 		return ( function_exists( 'is_product' ) ) ? is_product() : false;
 	}
 
@@ -104,8 +109,11 @@ function jetpack_is_product() {
 
 	/**
 	 * Check if we are in a WooCommerce Shop in order to exclude it from the is_archive check.
+	 *
+	 * @deprecated $$next-version$$ Moved to Classic Theme Helper package.
 	 */
 	function jetpack_is_shop_page() {
+		_deprecated_function( __FUNCTION__, 'jetpack-$$next-version$$' );
 		// Check if WooCommerce is active first.
 		if ( ! class_exists( 'WooCommerce' ) ) {
 			return false;
diff --git a/projects/plugins/jetpack/modules/theme-tools/content-options/post-details.php b/projects/plugins/jetpack/modules/theme-tools/content-options/post-details.php
index 73919ab6f7d7f..ab8cfa481fa3a 100644
--- a/projects/plugins/jetpack/modules/theme-tools/content-options/post-details.php
+++ b/projects/plugins/jetpack/modules/theme-tools/content-options/post-details.php
@@ -9,8 +9,11 @@
 
 	/**
 	 * The function to include Post Details in a theme's stylesheet.
+	 *
+	 * @deprecated $$next-version$$ Moved to Classic Theme Helper package.
 	 */
 	function jetpack_post_details_enqueue_scripts() {
+		_deprecated_function( __FUNCTION__, 'jetpack-$$next-version$$' );
 		// Make sure we can proceed.
 		list( $should_run, $options, $definied, $post_details ) = jetpack_post_details_should_run();
 
@@ -71,9 +74,11 @@ function jetpack_post_details_enqueue_scripts() {
 	/**
 	 * Adds custom classes to the array of body classes.
 	 *
+	 * @deprecated $$next-version$$ Moved to Classic Theme Helper package.
 	 * @param array $classes Classes for the body element.
 	 */
 	function jetpack_post_details_body_classes( $classes ) {
+		_deprecated_function( __FUNCTION__, 'jetpack-$$next-version$$' );
 		// Make sure we can proceed.
 		list( $should_run, $options, $definied ) = jetpack_post_details_should_run();
 
@@ -119,8 +124,11 @@ function jetpack_post_details_body_classes( $classes ) {
 
 	/**
 	 * Determines if Post Details should run.
+	 *
+	 * @deprecated $$next-version$$ Moved to Classic Theme Helper package.
 	 */
 	function jetpack_post_details_should_run() {
+		_deprecated_function( __FUNCTION__, 'jetpack-$$next-version$$' );
 		// Empty value representing falsy return value.
 		$void = array( false, null, null, null );