


Game does not start unless you disable shader pre-caching in Steam Settings > Downloads > Shader Pre-Caching
Game runs fine after disabling pre-caching. I use a version of proton specific to my OS, but it should work with latest proton as well.

Perferctly works out of a box

Changed GNOME's keyboard layout order (put English above all other layouts)
WASD is not working unless English layout is highest priority in GNOME
Runs exactly like Windows

MANGOHUD=1 gamemoderun %command%
I just set GE proton for everything. I'm sure regular proton works.
gamemoderun %command%

Singleplayer runs well, multiplayer has issues
Very occasional crackling
Multiplayer frequently disconnects
Multiplayer disconnects may be due to mods, though the only mods installed when experiencing disconnects were 2 small, client-side only audio mods

works fine
proton GE is not necessary but give more FPS

%command% -dx11
All great so far.
All great so far.
1080p, FSR 2.0, FXAA high, high settings and ultra on particles and visual effects. Awesome.

gamemoderun LD_PRELOAD="" PROTON_HIDE_NVIDIA_GPU=0 PROTON_FORCE_NVAPI=1 %command%
Intense frame drops in combat. Rectified with the NoParticlesExceptWeapons mod
Using DX12 makes the performance better. The performance issues are not always present.
Works out of the box
Tested with new Intel ARC B580, runs flawlessly smooth at 1080p, no special configs just start the game and thats it.

Solo missions are playable (the loading screen is extremely short) but online is sadly out of the question.
LD_PRELOAD="" gamemoderun %command%
The game process hangs on loading screens, giving repeated "Steam is not responding" prompts with options to force quit or wait. It eventually loads into the Space Rig (lobby area), however joining online games loads too slowly to be feasible.
Once in-game, there are no performance hitches at all.
My setup seems to give similar issues with other Unreal Engine games, with varying consequences depending on how long they normally take to load.
If you've experienced problems like these and were able to solve them, I'd love a ping @wannas on the ProtonDB discord server!

LD_PRELOAD="" %command%
There is currently a bug with Steam that degrades game performance significantly if you don't use the aforementioned launch arguements. https://github.com/ValveSoftware/steam-for-linux/issues/11446
Be sure to use those optional arguements in the Properties menu of every game in Steam that isn't linux-native.

gamescope --force-grab-cursor -W 2560 -H 1440 -f -- %command%
launch options for hyprland

LD_PRELOAD="" %command%
Performance degrades after a while, see added github links
The game runs perfectly after adding launch options as a workaround to fix the performance.

gamemoderun %command%
When enabled DX12
Do not enable DX12 in the settings or when starting the game

Works as a charm on proton-hotfix
Everything works perfectly out of the box, couldn't ask for a better experience

Have had to change the Proton version several times to find one that remained stable. For me, that's been 8.0-5. Game runs great since.
I do get the rare, occassional bug or oddity that usually is resolved with re-launching the game. At the worste, it required a reboot. But those have been few and far between. Game otherwise runs with zero issues.

After 30-40 minutes of playing the frametime max becomes 120ms with an average of 60ms making the game unplayable
Have tried using different proton versions be it GE or normal ones, lowering graphics settings but nothing has helped so far. The sad thing is this game used to work ootb.

When launching the game it loads in very slowly, I'll see a error in the terminal running steam. Sometimes I get a force quit/wait prompt.
Game loads in very slow, sometimes I'll be prompted with a "Steam" is not responding error and will be given a force quit option or a wait option.
In my terminal used to run steam I'll see this error - (wine:43970): GStreamer-Video-CRITICAL **: 21:18:32.561: gst_video_info_from_caps: assertion 'gst_caps_is_fixed (caps)' failed
Sometimes the wait option will allow me to load in, sometimes it will keep prompting the same window, its at every loading screen (launching, loading into a mission, loading back to base after a mission). The error steam shows in a terminal -
(wine:43970): GStreamer-Video-CRITICAL **: 21:18:32.561: gst_video_info_from_caps: assertion 'gst_caps_is_fixed (caps)' failed
I have a M.2 and Sata SSD I've tried the game on. I'm able to launch Marvel Rivals with no issues on my system. I've tried previous proton versions, it only made the game unlaunchable with infinite force quit/wait options.
In game it runs fine, but wow the loading screens are a gamble

Works perfectly as it is
Just intstall and click play! I were able to jump into random lobbies and play without a single issue.

Works completely fine with Proton GE, haven't tried just normal proton but it appears to work fine based on other reports!
Anything between 75-140 FPS, and some random choppiness / lack of smoothness.

Its fine, if you restart game every mission. And not, if you don't.
After ~30-40 min game suddenly drop FPS down to 50% for no reason. It happens on any Proton, distro, Wayland or X11. Need to restart game.
Devs, FIX THIS CRAP. Everything was fine, OTTB. What happened to you?
mangohud %command%

if game is freezing just disable vysnc and use wayland. other than that game is amazingly fast and smooth
you need to use off vysnc and use wayland. it helped my problem with alt tab freezing

--force-grab-cursor
DO NOT USE VYSNC IF YOUR GAME GETS FROZEN WHEN ALT TAB. CLOSE THE VYSNC ON GAMES SETTINGS AND THEN DONT FORGET THE APPLY THE CHANGES

Works perfectly OOTB
Submitting this just to replace my old irrelevant report.

-force-vulkan -USEALLAVAILABLECORES
Light Input lag, also the mouse was feeling laggy even when the FPS was above 120.
Was experiencing extremely FPS loss when looking on a specific direction, on multiplayer was way more worse. (Changed to older proton version)
The game was crashing frequently and i was experiencing waves of FPS drop for uknow reason.
If you're experiencing FPS no matching the feel of the scree or mouse, you can try Vsync, but it adds to your imput lag. I had no more imput lag after changing to Proton 7.0-6
systemd-inhibit game-performance %command%