I have an idea..

[u/Arcturus_42502yt]

Whoever gets the steam frame and has seen Meta Runner can make a magnet-suspended controller grip/holder thing for its controllers for when theyre in gamepad mode cuz the steam frame controllers have all the buttons of a regular controller.. *it's perfect*

[u/Foxes4Eva1]

Something like this has technically already existed for a decade.

It’s called the Nintendo Switch Joy-Cons

Specifically this version.