Drivers, probably. Valve did the heavy lifting with the Steam Controller and Steam Input. Other manufacturers don’t have a controller abstraction layer they can integrate that into
Do you mean touchscreen? At least the ROG Ally and the GPD ones don’t have touchpads. The only ones I could find were the Lenovo Legion and Steam Deck. Haven’t seen any other handheld PC with a touchpad.
Why are there only two handheld PCs with touchpads?
Drivers, probably. Valve did the heavy lifting with the Steam Controller and Steam Input. Other manufacturers don’t have a controller abstraction layer they can integrate that into
There are a bunch more then 2:
Acer rog handheld Lenovo legion Gpd win 2/3/4 and various versions Ayaneo has a few different models Onexplayer which also uses an Intel chip Any loki
There are probably more, I haven’t used any of them so don’t take this as an endorsement of any of them…
Do you mean touchscreen? At least the ROG Ally and the GPD ones don’t have touchpads. The only ones I could find were the Lenovo Legion and Steam Deck. Haven’t seen any other handheld PC with a touchpad.
gpd and ayaneo have models with touchpad and keyboard. many models. search better