it aint ready for mainstream, it still has issues and translation layer aint perfect at all. my gaming rig is on linux. I guess this will be resolved at some point and valve will release a TV console version.
The hardware is not in the same class, in fact it literally under powered because it is a handheld. Guy who wants headshot noobs 4 loolz wants that 4k60 fps experience.
I think that's the point bro above is making tho... sure you an use it like one. But it does not compete directly with PS5 and Xbox. Different audience and primary use case is different.
If Xbox dies, steam deck is not a proper substitute for people who buy TV consoles. I guess steam could make steam console tho tbh