Regardless of which compatibility layer (Proton 4, 5, 7, 8, 9, 10, experimental) I use and if I use the native libraries or Steam’s, the discovery services work, but I can’t see other players in the Anomaly.
Weirdly enough, on Steam Deck it works without any issues, but obviously I want to play this on my beefy gaming PC 😥
How can I fix this?


Self rolled arch, do you have ufw installed?
Since your steam deck works fine you can look for traffic with multicast or steam services