I did install Plasma + apps on mint btw (just apt installed and crossed my fingers)! Have been running issue free for about 6 months but I didnt uninstall the gnome apps so theres a duplicate for everything.
Edit: I still wouldn't reccomend it if you are starting out, I only did it because I couldnt be bothered switching distros
Yep I'm pretty sure its wayland! But its only version 5.X