So far working very well on the Ally. I’m getting in the 40-45 range (capped at 45 so could range higher) with good graphics settings and FSR quality mode.
Edit: that’s also not plugged in. Running at 18 watts. Plugged in I expect to be very smooth indeed. I do have an issue with crackly sound though.
No issues with icons as the UI changes completely with controller mode. Quite happy so far. 🙂