I have been looking for a way to control my computer from the couch, using my phone... But this also isn't it. VNC just doesn't work yet with Wayland, unfortunately. And Rustdesk also didn't quite work, last time I tried it.
Thanks, I tried Sunshine and it seems to work better! Any chance you have experience with switching between monitors with the Android Moonlight client?
Unfortunately, no, I assign one monitor that stays asleep unless I intentionally wake it. Most of my use case these days is streaming my desktop remotely over wireguard. Good luck tinkering!