Definitely supposed to be supported! Can you let me know more about the controller that isn't being detected?
Hello!
I have exactly this problem on macOS.
Controller (XSX) only works until I press any of ABXY buttons, after that it loses input until I press "Start" button - basically unplayable.
Same on Steam and itchio versions. Latest gamepad firmware. Latest game patch. Gamepad works perfectly fine on other titles.
lmk if more info needed!