Fedora 44's DTB implementation actually makes the Snapdragon SoCs work pretty well. I'd give it a look.
Valve also has the Frame running on Snapdragon's, so that means full SoC performance and GPU implementation. How whatever they got working trickles down to the community remains to be seen.
AMD is launching their ARM chips this year.
Nvidia keeps pushing theirs back because the first gen was horrible, and the 2nd is already sounding problematic.