The same thing that makes Windows gaming handhelds desirable also holds them back. It's never been the hardware. The designs aren't perfect in a lot of the devices -- even the best of the lot, the Asus ROG Ally and ROG Ally X,

One of the key differences between these handhelds is that the ROG Ally has an Armoury Crate button while the Xbox Ally has an Xbox button. Both programs can be used to launch games, adjust settings, and more.