Python and Rust as well. C# invented a large part of the design of async/await that has been adopted by other languages. I figure if there's a better way, it would have been improved on by now since those other languages had plenty of time to see the issues with C#'s version.

Most claimed “simpler” languages are only being used for backend systems, i.e go, BEAM languages. There’s a reason that any language where UI needs to be considered has used what C# has. The flow of code is simplified because you don’t want to be on callback hell.