You're correct, and I tried that approach as well, but it got really annoying to need to install MO2 for every different game, each time.

And, as you say, it doesn't really work for unsupported games... whereas Limo works with a single, native install, and while it doesn't come preconfigured for every game that exists... you can just whip up your own game profile by pointing it at the right directory, and taking a bit of time and trial and error to set up the mod deployers properly... works for many different versions of games... and I think at this point, supports everything MO2 does, both in terms of games, and just internal features of the program itself?

Its even got a filtering and tagging system for organizing your mods within categories, you can manage load orders and investigate conflicts and overrides...