I've been on Wayland for the past two years exclusively (Nvidia).
I thought it was okay for the most part but then I had to switch to an X session recently. The experience felt about the same. Out of curiosity, I played a couple of games and realized they worked much better. Steam doesn't go nuts either.
Made me think maybe people aren't actually adopting it that aggressively despite the constant coverage in the community. And that maybe I should just go back.
I should check that out. Can you just stream any application to your phone?
It's essentially just a remote desktop app, so yeah kinda. Depending on your screen resolution it'll be either be more or less annoying to click on smaller UI elements, but it's certainly possible.
I keep my Bluetooth headphones connected to the PC, and there's maybe a split second delay. Otherwise it's perfect, because you can still navigate your PC with the touch screen as a mouse, and it even nicely supports my 3 monitors at once.