diff --git a/internal/settings/settings.go b/internal/settings/settings.go
index d402ac8103..6c9a59e92e 100644
--- a/internal/settings/settings.go
+++ b/internal/settings/settings.go
@@ -78,7 +78,9 @@ var DefaultAgentConfigWindows = func() string {
 	return filepath.Clean(path)
 }()
 
-var defaultFeatureGates = []string{}
+var defaultFeatureGates = []string{
+	"-confmap.strictlyTypedInput", // TODO: Remove as part of OTL-2877 and after https://github.com/open-telemetry/opentelemetry-collector/issues/5228
+}
 
 type Settings struct {
 	discovery                *discovery.Provider
diff --git a/internal/settings/settings_test.go b/internal/settings/settings_test.go
index bf979d1940..43cd125ffc 100644
--- a/internal/settings/settings_test.go
+++ b/internal/settings/settings_test.go
@@ -132,7 +132,7 @@ func TestNewSettingsNoConvertConfig(t *testing.T) {
 		"splunk.property:splunk.discovery.receiver.receiver-type/name.config.field.two=val.two",
 	}, settings.ResolverURIs())
 	require.Equal(t, 2, len(settings.ConfMapConverterFactories()))
-	require.Equal(t, []string{"--feature-gates", "foo", "--feature-gates", "-bar"}, settings.ColCoreArgs())
+	require.Equal(t, []string{"--feature-gates", "foo", "--feature-gates", "-bar", "--feature-gates", "-confmap.strictlyTypedInput"}, settings.ColCoreArgs())
 }
 
 func TestNewSettingsConvertConfig(t *testing.T) {
@@ -157,7 +157,7 @@ func TestNewSettingsConvertConfig(t *testing.T) {
 
 	require.Equal(t, []string{configPath, anotherConfigPath}, settings.ResolverURIs())
 	require.Equal(t, 12, len(settings.ConfMapConverterFactories()))
-	require.Equal(t, []string{"--feature-gates", "foo", "--feature-gates", "-bar"}, settings.ColCoreArgs())
+	require.Equal(t, []string{"--feature-gates", "foo", "--feature-gates", "-bar", "--feature-gates", "-confmap.strictlyTypedInput"}, settings.ColCoreArgs())
 }
 
 func TestSplunkConfigYamlUtilizedInResolverURIs(t *testing.T) {
@@ -184,7 +184,7 @@ func TestNewSettingsWithValidate(t *testing.T) {
 	settings, err := New([]string{"validate"})
 	require.NoError(t, err)
 	require.NotNil(t, settings)
-	require.Equal(t, []string{"validate"}, settings.ColCoreArgs())
+	require.Equal(t, []string{"--feature-gates", "-confmap.strictlyTypedInput", "validate"}, settings.ColCoreArgs())
 }
 
 func TestCheckRuntimeParams_Default(t *testing.T) {
@@ -338,9 +338,9 @@ func TestSetDefaultEnvVarsSetsInterfaceFromConfigOption(t *testing.T) {
 func TestSetDefaultFeatureGatesRespectsOverrides(t *testing.T) {
 	t.Cleanup(setRequiredEnvVars(t))
 	for _, args := range [][]string{
-		{"--feature-gates", "some-gate", "--feature-gates", "telemetry.useOtelForInternalMetrics", "--feature-gates", "another-gate"},
-		{"--feature-gates", "some-gate", "--feature-gates", "+telemetry.useOtelForInternalMetrics", "--feature-gates", "another-gate"},
-		{"--feature-gates", "some-gate", "--feature-gates", "-telemetry.useOtelForInternalMetrics", "--feature-gates", "another-gate"},
+		{"--feature-gates", "some-gate", "--feature-gates", "telemetry.useOtelForInternalMetrics", "--feature-gates", "another-gate", "--feature-gates", "+confmap.strictlyTypedInput"},
+		{"--feature-gates", "some-gate", "--feature-gates", "+telemetry.useOtelForInternalMetrics", "--feature-gates", "another-gate", "--feature-gates", "+confmap.strictlyTypedInput"},
+		{"--feature-gates", "some-gate", "--feature-gates", "-telemetry.useOtelForInternalMetrics", "--feature-gates", "another-gate", "--feature-gates", "+confmap.strictlyTypedInput"},
 	} {
 		t.Run(strings.Join(args, " "), func(t *testing.T) {
 			settings, err := New(args)
diff --git a/tests/general/default_config_test.go b/tests/general/default_config_test.go
index b5e0b6901a..89c0f1002f 100644
--- a/tests/general/default_config_test.go
+++ b/tests/general/default_config_test.go
@@ -110,7 +110,7 @@ func TestDefaultGatewayConfig(t *testing.T) {
 					"batch": nil,
 					"memory_limiter": map[string]any{
 						"check_interval": "2s",
-						"limit_mib":      460,
+						"limit_mib":      "460",
 					},
 					"resourcedetection/internal": map[string]any{
 						"detectors": []any{"gcp", "ecs", "ec2", "azure", "system"},
@@ -297,7 +297,7 @@ func TestDefaultAgentConfig(t *testing.T) {
 					"batch": nil,
 					"memory_limiter": map[string]any{
 						"check_interval": "2s",
-						"limit_mib":      460,
+						"limit_mib":      "460",
 					},
 					"resourcedetection": map[string]any{"detectors": []any{"gcp", "ecs", "ec2", "azure", "system"},
 						"override": true,