I'm not sure what you mean ? We have been using 3-4 controllers on the Steam Deck lately : Steam Controller, Xbox One gamepad, Switch 1 Joy Pads (together or s

I'm not sure what you mean ? We have been using 3-4 controllers on the Steam Deck lately : Steam Controller, Xbox One gamepad, Switch 1 Joy Pads (together or separate). There are some quirks with the first time game setup sometimes, but we've never noticed any issues after that ?