Came here to say this. I use mine almost every day, specifically for titles that don’t have controller support.
While I do prefer a twin-stick like the DualSense for games with support, you cannot at all beat a Steam Controller for strategy gaming from the couch. I’m still on my first, but have two as backup (it was limit 2 when Valve offloaded them for $5 each).
Try a strategy title with the pads, in particular something like Civ, where there is no time limit. Right pad works fantastic as a mouse replacement. Left pad is always kind of just there, though it can be useful as a radial menu if you use the configurator (albeit that makes more sense on Steam Controller since the pads are round).