Steam Input is amazing, and something that I feel doesn't get nearly as much credit as it deserves. You can literally make anything do anything. You can even create on-screen rotary menus and shit.
I can stream my PS5 to my Steam Deck, and use the gyro to aim in an first person game. Like, really fucking easily. I set it up so if I'm playing Chiaki4Deck and press one of the back buttons, it swaps between gyro on and gyro off.
I saw a comment on Lemmy a while back where someone said they hated steam input and I just didn't understand what possible issue anyone could ever have with it.