I strongly disagree. Async/Await is one of the nicest, cleanest ways to deal with asynchronous tasks, and asynchronous tasks are everywhere. Loading data from disk without blocking and doing something once this is done -> async. Memcpying data from CPU to GPU without blocking -> async. Memcpying data from GPU back to CPU without blocking -> async.

Sure, there are other ways to handle these things like polling state, but async makes it trivial and readable.

But this mostly applies to JS which has a kickass implementation of async/await. Whatever C++ tried to do, it's an awful mess so there I still use threads with busy loops, polling, etc., whatever makes sense for the task at hand.