QEMU on Wayland unusable, because it can’t grab the mouse … I’ll add it to my TODO list and investigate/report it eventually.

… which is probably a GTK bug.

… but the SDL backend is broken as well, albeit differently …

… okay, the SDL backend works if you also set SDL_VIDEODRIVER=wayland.

… but you can’t set SDL_VIDEODRIVER=wayland globally, because that breaks Wine again …