I am also a heavy Linux user, but I do no recordings and have no Focusrite et.al. And I do like RigManager for sound editing and almost forget how I can do edits with Stage alone.
On the other hand, I do not like Wine. So I installed Windows 10 with Virtual Machine Manager and run RigManager in it. I saw it works, somehow great, somehow not so good regarding the speed of USB communications. So, if I really want to work with RigManager, I still boot Windows native on my dual boot system.