Why wait for Microsoft?
Somebody should talk to STARDOCK.
They can probably cook up a proper handheld GUI in a month or two.
And those kinds of utilities are their whelhouse. (FENCES, etc)
After reading this article, I went and bought a ROG Ally. Windows 11 isn't amazing on it, but it's a lot better than Windows 10 and earlier versions of Win 11. I think the OOBE is a bit painful, but it's just the norm for PC gamers.
All that said, my overall first impressions of the ROG Ally are really positive (coming from Steam Deck). Kind of blown away by it.