I tried my switch pro controller and a PS4 Dualshock controller, and neither seem to be working. Any ideas anyone? I heard 8BitDo seems to work, but I cannot find my SN30 Pro anywhere haha, so just curious if anyone has gotten any others working.

Try adding the game to your steam library as a "non steam game" and run it using steam big picture, it worked for my dualsense

Got my Xbox One pad working by just connecting it before loading the game