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From IEnumerable or ICollection to List or Array

For context, see @dustinmoris Tweet about IEnumerable.

Enumerable to ...

BenchmarkDotNet=v0.13.1, OS=Windows 10.0.19044.1889 (21H2)
Intel Core i7-7820HQ CPU 2.90GHz (Kaby Lake), 1 CPU, 8 logical and 4 physical cores
.NET SDK=6.0.303
  [Host]     : .NET 6.0.8 (6.0.822.36306), X64 RyuJIT
  DefaultJob : .NET 6.0.8 (6.0.822.36306), X64 RyuJIT
Method NumOfItems Mean Error StdDev Ratio RatioSD
EnumerableToList 10 119.9 ns 1.54 ns 1.37 ns 1.00 0.00
EnumerableToArray 10 151.2 ns 2.27 ns 2.01 ns 1.26 0.02
EnumerableToList 100 717.5 ns 14.36 ns 14.10 ns 1.00 0.00
EnumerableToArray 100 773.1 ns 12.49 ns 9.75 ns 1.08 0.02
EnumerableToList 1000 5,786.8 ns 102.44 ns 85.54 ns 1.00 0.00
EnumerableToArray 1000 5,818.2 ns 114.94 ns 118.04 ns 1.01 0.03
EnumerableToList 10000 56,798.2 ns 592.17 ns 494.49 ns 1.00 0.00
EnumerableToArray 10000 55,067.1 ns 1,083.96 ns 1,248.29 ns 0.97 0.02

Collection to ...

BenchmarkDotNet=v0.13.1, OS=Windows 10.0.19044.1889 (21H2)
Intel Core i7-7820HQ CPU 2.90GHz (Kaby Lake), 1 CPU, 8 logical and 4 physical cores
.NET SDK=6.0.303
  [Host]     : .NET 6.0.8 (6.0.822.36306), X64 RyuJIT
  DefaultJob : .NET 6.0.8 (6.0.822.36306), X64 RyuJIT
Method NumOfItems Mean Error StdDev Ratio RatioSD Gen 0 Gen 1 Allocated
CollectionToList 10 28.42 ns 0.312 ns 0.261 ns 1.00 0.00 0.0229 - 96 B
CollectionToArray 10 11.00 ns 0.133 ns 0.118 ns 0.39 0.01 0.0153 - 64 B
CollectionToList 100 49.41 ns 0.906 ns 0.757 ns 1.00 0.00 0.1090 - 456 B
CollectionToArray 100 32.04 ns 0.688 ns 0.644 ns 0.65 0.02 0.1013 - 424 B
CollectionToList 1000 250.07 ns 2.341 ns 2.075 ns 1.00 0.00 0.9689 - 4,056 B
CollectionToArray 1000 229.58 ns 4.663 ns 5.727 ns 0.91 0.03 0.9613 - 4,024 B
CollectionToList 10000 2,477.78 ns 44.211 ns 57.487 ns 1.00 0.00 9.5215 1.9035 40,056 B
CollectionToArray 10000 2,444.89 ns 37.574 ns 33.309 ns 0.99 0.02 9.5215 1.1902 40,024 B