Anyway, switching to the #Nouveau driver finally got me up and running with Wayland! I've been wanting to close down that last big security hole on my system, #Xorg , which has made my system's #Flatpak -based sandboxing not really sandboxing.
And now with my #Wayland session, I get nicer pinch-to-zoom, and get almost no flickering on maximize etc, too. However, there's stuttering sometimes, and lower FPS in games (tested on Minecraft) compared to the proprietary driver.