As of writing, it's getting review bombed mainly for long queue times and streamers getting preferential treatment.
One review says it worked on Linux/Proton during the beta and the devs even demoed it on the Steam Deck (citation needed), but they introduced a kernel-level anticheat right before launch and now it doesn't work.
Another reviewer is saying the anticheat made his Windows BSOD.
May be worth letting the dust settle on this one.