It'd be cool, but I guess the hodgepodge of different solutions in that space would make it really hard. For example, many mods for GW2 don't work in linux if you're on something like Hyprland due to them having to act as overlays. Not sure if that's a wayland issue or just a typical hyprland thing though
You're right, but a plugin for a common compositor like Plasma's KWin would still make it accessible to a large number of users. Shouldn't be too hard to do either. Maybe I'll do it this weekend!