Make Stream easier to implement

Stream2022.cs

public abstract class Stream2022 : Stream
{
    public sealed override int Read(byte[] buffer, int offset, int count)
        => Read(buffer.AsSpan(offset, count));

    public abstract override int Read(Span<byte> buffer);

    public sealed override Task<int> ReadAsync(byte[] buffer, int offset, int count, CancellationToken cancellationToken)
        => ReadAsync(buffer.AsMemory(offset, count), cancellationToken).AsTask();

    public abstract override ValueTask<int> ReadAsync(Memory<byte> buffer, CancellationToken cancellationToken = default);

    public sealed override void Write(byte[] buffer, int offset, int count)
        => Write(buffer.AsSpan(offset, count));

    public abstract override void Write(ReadOnlySpan<byte> buffer);

    public sealed override Task WriteAsync(byte[] buffer, int offset, int count, CancellationToken cancellationToken)
        => WriteAsync(buffer.AsMemory(offset, count), cancellationToken).AsTask();

    public abstract override ValueTask WriteAsync(ReadOnlyMemory<byte> buffer, CancellationToken cancellationToken = default);
}