Since Nexus Mod Manager for Linux fizzled out, I was excited to find a decent mod manager. It has built-in support for about 100 games, but adding other games seems pretty easy. I pasted in the Steam ID and path the the .exe of a proton game (MineMogul), and then everything just worked.
Huh, they added Flatpak support since I last checked it out. I’ll have to look into it.
I have some apprehensions, since I’ve got a stupid large Skyrim modlist I’ve been working on for months, and a swap could booger things up. But if there’s better backup/import/export management than MO2 I might make the switch