After watching the Gamer Nexus video of what’s practically a warranty scam by Asus, I’d never buy one and may never buy Asus again if that’s the way they treat customers. I have a few of their ROG components in my system and from what I see they are not as great as they were 30 years ago.
Try going into the Steam settings and make sure that the appropriate controller is enabled for steam input. I had the same issue recently when switching from an Xbox controller to a Gulikit. Enabling Xbox input in Steam fixed it - even though the new controller is not an Xbox controller, and a real Xbox controller worked fine without enabling it.
Darn it, we’ll never know if the cat gets reunited! It was a fun and unique, if too short, game.