I'm seconding this now. Used Lutris Flatpack edition on my Linux Mint to install SB. Grabbed the CodeMeter Linux Runtime (.deb because Linux Mint is Debian based.) from the Wibu-Systems Website. No fiddeling with settings whatsoever, it just works. My CodeMeter Dongle works. Made a little mission in the editor, played it, performance is as usual. I didn't test any MultiPlayer, other simulator's MP like DCS or IL2 work in Lutris fine so I'd assume it works too.
Tldr: Lutris good, SB good - Good times!
Edit: Should the text look weird, install Arial, in Lutris just select the game and click the wine glass on the bottom.
Edit 2: Multiplayer works, both hosting and joining.