Does C# have IsNullOrEmpty for List/IEnumerable?

Question

I know generally empty List is more prefer than NULL. But I am going to return NULL, for mainly two reasons

1. I have to check and handle null values explicitly,

Answer 1

for me best isNullOrEmpty method is looked like this

public static bool IsNullOrEmpty(this IEnumerable enumerable)
{
    return !enumerable?.Any() ?? true;
}