I've been running KDE plasma with wayland in arch for over a year now, it's been an absolute dream come true. Everything just works. Gaming with Proton, dual monitors with different resolutions, Japanese input, I only need to hop onto windows when my son wants to play Minecraft.
I maintain the AUR package for this. `mcpelauncher-linux` and `mcpelauncher-ui`. If you just do a simple `paru -S mcpelauncher-ui`, it should build just fine.
Since MS bought it, aren't there two versions, a legacy one called "Java" and the newer one from MS, probably not in Java and with all the cool kids (multiplayer mode) on it?