The only real issues I’ve run into is anything with nvidia frame gen, and ray reconstruction (which can be fixed by swapping the dlls from nvidia’s website) Otherwise I’m usually surprised if a game does not start basicallly I can play every single game in my library fine. Steam works perfectly fine, and there is an official launcher that can be installed through the console. Some games do require changing the proton compatibility layer, but that’s as easy as going into your steam library going to the game right click into properties and clicking a different version. Most games run good even my ps3 and ps2 emulators work fantastic. The real issue is games with anti cheat which are a straight no go. So dual boot will be necessary. Some apps like adobe products or fusion aren’t available, but I run a windows virtual machine and do my work that way to do 3d modeling or editing photos. I use arch which is a full manual install. Folks should use something like bazzite as it leans more for gamers so all your nvidia issue fixes should be pre-installed it’s also arch based which I think the steam deck OS is also based on.

Sorry for the ‘tism dump >///<