That was one of the really cool features of the OG steam controller (and the deck too but I don’t use as much), pads can totally be setup to emulate a trackball and the haptics were weirdly good and giving you feedback. I found it really solid for games like warframe, that and gyro aiming (which I’ve never gelled with on the deck) felt pretty solid to me.

Otherwise, the trackpads can be used for things like rotary menus too which I definitely get a lot more use out of.