> There's also the fact that this can't compete with the Switch due to the simple fact that games are optimized to run at a stable framerate by the developers or subcontracted companies for the Switch

I have a pretty extensive Switch library and can definitely say that performance of ports is really hit or miss.

This is also missing that PC games are already designed with a broad range of hardware in mind and nearly every game for PC has extensive settings to control graphical quality vs performance.

Sure, maybe a device like this might have performance issues but I don't think the Switch completely trumps this in terms delivering playable experiences.