Like, what's the equivalent of Promise.all with async/await? And how do tou do stuff synchronously after kicking off an async process?
If you want to use async/await with something that's asynchronous but not Promise based, you'll first need to convert it into a promise before you can async/await it. This is actually very elegant in my opinion: instead of proposing yet another way to do asynchronicity in JS, async/await fully embraces Promises, which you already know.
Of course, this means that async/await also has all of Promise's downsides. For example, you can only resolve a promise once, so neither Promises now async/await make dealing with streams of asynchonous events any easier.