Why do you want your windows gaming handheld (e.g. Ally) doing non gaming things?

I don’t expect a steakhouse to bring me a Swiss army knife to cut my steak with because it can do more than cut steak? I don’t need a can opener when eating steak. Same is true for bringing the right OS for the job of gaming.

Also…SteamOS can do a lot as a full OS. It may be tailored to handheld gaming, but it is more capable than you think.