As I had no experience with Valve’s products, but rather ps4-5 knock-offs, I want them to have one or two scrollwheels with a sensory feedback in the future.
Switching radio stations like in old timea, adjusting your cam’s focus in Outlast-likes, rolling the roulette while gambling in some Yakuza game, switching your equipment in some stealth game - it can certainly has it uses if it wasn’t too weird.
But what idea or part would you like to add to generic controllers and schemes if you had an authority over that one an you had studios to follow this quirk?
Controllers that have a solid basic layout and feature back buttons and track pads like the Steam Controller and Steam Deck (not in the center like the Play Station - that is not as ergonomic).
Ideally, analog paddles+buttons and hall effect sensors too.