What's the difference between Uri.ToString() and Uri.AbsoluteUri?

Question

As a comment to an Azure question just now, @smarx noted

I think it\'s generally better to do blob.Uri.AbsoluteUri than blob.Uri.ToString().

Answer 1

Why not check and use the correct one?

string GetUrl(Uri uri) => uri?.IsAbsoluteUri == true ? uri?.AbsoluteUri : uri?.ToString();