

I can only speak for myself here, but you could give Limo a try. It’s Linux-native (so you don’t have to run it through Wine, unlike Vortex & Mod Organizer 2), the UI works well enough for my needs, and it has Nexus Mods support (you just give it an API key in the settings, so it can download mods for you). You’ll want to read the documentation for it though, to understand what “Data” and “Bin” mean when installing mods, deployment methods, LOOT integration, etc.
This is excellent news. This is one of the biggest features that I’ve wanted out of Firefox for years, and one of the reasons I’ve kept Chromium as a secondary browser all this time.
I do remember seeing a community-made GitHub project that added a profile switcher to Firefox, which looked pretty good, but it also required installing an executable somewhere on the system, which I’m not exactly keen on.
I think Zen Browser has a built-in profile switcher, but it also changes a bunch of core UI elements… I just want Firefox with a profile switcher, lol.