After testing Plasma Mobile packages on Fedora 40 and KDE Neon 6.2, It would be nice to have these packages pre installed in Bazzite, this GUI has improved with each release of Plasma and makes a lot of sense on smaller touchscreen devices.
You could just leave it to the user to select which GUI to load via SDDM or you could maybe have a simple script/command to run in ujust for switching environments?
I run Fedora with Plasma Mobile on a Dell 2 in 1 Tablet and it works really well as a touch first device, and if I want a full desktop, I can logout, select Plasma DE and log back in, I also have KDE Neon on another Dell Laptop convertible, and it works equally as good, horses for courses I say.
I feel Plasma Mobile would work really nice on the Legion Go, and should also work really well on the Steam Deck and similar handhelds, so maybe it could be added to the Deck images first?
If anyone else has any thoughts on this, post below, but I really think this would work well with console handhelds.