Can I use .NET SIMD on Raspberry Pi 4?

I'm writing code that will subtract corresponding bytes in two arrays and count the number of resulting bytes surpassing a given threshold. AFAIU, it would really benefit from .NET SIMD, but System.Numerics.Vector.IsHardwareAccelerated returns false when I compile C# on Raspberry Pi 4.

My dotnet version is 3.1.406, I've added

  <PropertyGroup>
    <Optimize>true</Optimize>
  </PropertyGroup>

to the csproj and running release configuration.

Is there any way I can leverage SIMD support in .NET on Raspberry Pi 4? Maybe with .NET 5?

Update I installed .NET 5 and tried .NET Intrinsics, but none is supported:

Console.WriteLine(System.Runtime.Intrinsics.Arm.AdvSimd.IsSupported); //false
Console.WriteLine(System.Runtime.Intrinsics.Arm.Aes.IsSupported);  //false
Console.WriteLine(System.Runtime.Intrinsics.Arm.ArmBase.IsSupported); //false
Console.WriteLine(System.Runtime.Intrinsics.Arm.Crc32.IsSupported); //false
Console.WriteLine(System.Runtime.Intrinsics.Arm.Dp.IsSupported); //false
Console.WriteLine(System.Runtime.Intrinsics.Arm.Rdm.IsSupported); //false
Console.WriteLine(System.Runtime.Intrinsics.Arm.Sha1.IsSupported); //false
Console.WriteLine(System.Runtime.Intrinsics.Arm.Sha256.IsSupported); //false

I'm on 32-bit Raspbian (Debian derivative), is there any chance I need 64-bit version for this to work?

P.S. To clarify, in plain C# the algorhytm looks like this:

        public static int ScalarTest(byte[] lhs, byte[] rhs)
        {
            var result = 0;

            for (int index = 0; index < lhs.Length; index++)
            {
                var a = lhs[index];
                var b = rhs[index];
                if (b > a)
                {
                    (b, a) = (a, b);
                }
                result += ((a - b) >= 16) ? 1 : 0;
            }

            return result;
        }