Tried so far:
-vulkan in steam launch options
vm.max_map_count set to various high values in systemctl
No luck. Game freezes up for a moment every few seconds until eventually one of the freeze-ups results in a crash.
Edit: Only while watching Live games. Replay viewer for my own matches is fine.
System: Ubuntu 24.04 LTS
Running Deadlock through Proton (Experimental)
Everything works fine and smooth in-game, I have been playing for the past couple of days. But watching any Live games crashes the game within seconds.