I’m in the exact same boat as you. I’ve been dual booting Mint Cinnamon for a couple weeks now, and my Stream Deck sits on the desk being completely useless…

I also have a virtual audio console set up so I can use the stream deck to play audio through my virtual microphone input so I can use it as a soundboard in voice calls, and I can’t imagine a way to make that function on Linux without doing my own software development work. I know PulseAudio is powerful and I could probably get an equivalent setup by making the right API calls and hooks, but it just works in Windows.