Works just like it would anywhere else

Game may occasionally freeze / crash on startup on ground battles due to anti-cheat issues. Opening the laucher directly (not through steam) seems to help mitigate the issue somewhat
For users experiencing lag at start of ground battles, try launching directly from war thunder's launcher (not through steam).
Game runs perfectly and performance is way better than on windows

2-5 sec freeze at the start of the match.
Despite initial freeze at the start of the match, game runs with higher (100+ high/very high details with SSAO to medium) and more stable framerate than on windows 10/11

Generally as functions on Windows with some slight problems
occasional hang on exit
lag on start of round
No raytracing support currently. Known bug of lag/freezing at the start of a round for several seconds. Experienced a hang on exit requring a forced close of program. If using a pre-existing account but now playing via Steam, a workaround is needed to force using a log-in screen as to not be stuck with the automatically created new account (delete the created account; guides are easiliy available for the process). This was the same on Windows. Otherwise stable very high framerates at very high settings at 1440p.

Works very well, parity performance on Wayland to Windows (maybe ~5-10% slower on Xorg). Generally bugless.
gamemoderun LD_PRELOAD=”” %command%
Not necessarily, but tabbing in can sometimes preserve tabbed out mouse position, leading to mouse movement during tab-in. Spectating does not allow for full 360 rotation.
Common Bug: ~5 second lag spike in Ground RB

Freezing at start of matches
Freezes at beginning of Ground Tank battles - leads to crashing into teammates, spinning in circles and having a major disadvantage. Allegedly playing through launcher fixes this issue. Ongoing issue for several months. You can find the full bug report here: https://community.gaijin.net/issues/p/warthunder/i/Gzuh9IYe7yLp
Should run faster than on Windows 10 & 11 otherwise. e.g In tank test drive: Max graphics + SSAA 4x + 2560x1440 = ~110 FPS Windows vs ~125 FPS Linux

NABLE_HDR_WSI=1 gamescope --fullscreen -w 3440 -h 1440 --hdr-enabled --hdr-sdr-content-nits 600 --hdr-itm-target-nits 600 --mangoapp --hdr-debug-force-output -- env ENABLE_GAMESCOPE_WSI=1 DXVK_HDR=1 DISABLE_HDR_WSI=1 %command%
Unable to enable HDR in-game (monitor IS hdr capable), oversaturated colors
Not being able to enable HDR is a very minor issue, really. Just stick to SDR for the time being.

Nice native performance; no RT
Ray tracing not supported on Linux.

Works well. never crashes. stable. simple to start
On higher graphic settings or high anti-aliasing/super resoultion the fps likes to jump by ~40
Temporary screen freezes after match starts but they don't really impact gameplay.

works well as a native app in DX11 mode. DX12 mode would run terribly for me.
A large stutter happens shortly after the beginning of every round, and performance in the hangar is much worse than in game performance.

Terrible performance native and crashes when entering battle with Proton
When launching the game native, I get terrible performance, on Windows I used to have 200+ FPS on max graphics, while now I barely reach 70 on High. I tried using Proton and it did give the appropriate perfomance, but it crashes every time I try to enter a battle or test drive and leaves me with a Fatal Error message with a long error code.

Overall runs even better than it did for me on Windows10/11, more fps with same graphics settings. Though RTX Nvidia reflex is greyed out.
LD_PRELOAD=/usr/lib/libGL.so:/usr/lib/libGLX.so:/usr/lib/libEGL.so %command%
Game freezes for about 5sec at the start of the match, seems to be a common bug for a lot of people, but apart from that runs well.

Ran perfectly! No issues loading it up, changing accounts, or in match.

Tanks
Of course it has its hiccups like freezing for a couple seconds at the start of the match but other than that it runs absolutely beautifully. You can't run ray tracing on linux (afaik) so thats a downside but its super smooth otherwise.

Works fine, but Gaijin account users need to fiddle
Freeze quand un match démarre, pendant 2-3 secondes.
Connecting gaijin account to steam account needed fiddling around.
If you can't log into your old account through steam, here's a solution that worked for me : https://steamcommunity.com/app/236390/discussions/0/3800525036435382777/#c4417550902865725186
- Turn off the internet connection;
- Start WarThunder from STEAM;
- Auto-Login fails, you get re-directed to the log in screen in WarThunder;
- Reconnect the internet;
- Log in with your old/existing account.

Always crashes within 800 meters of enemies, both on Proton and Native
No matter which version of Proton I use or the Steam native or the Launcher from War Thunder's website, it always crashes when I come within 800 meters of the opponents. I don't know why, but it is so annoying and I cannot play it as a result. Tried tinkering with all graphics settings, nothing would work, neither on Proton nor Native.
Don't know why but sometimes audio disconnects for a moment

gamemoderun %command%
It looks like the only major difference between the linux native version and the windows version is the lack of raytracing (i have not yet tried to run the game with proton)
Seems like it runs even better on Linux than on Windows
game-performance %command%
Cannot play realistic, but arcade works perfectly fine.
game itself could be boring but it works very well

All Gucci

unset LD_PRELOAD; gamescope -W 3840 -H 2160 --borderless --force-grab-cursor -- gamemoderun %command%
Game crashes while playing 6.0-7.0grb any nation
game lags for 5 secons at the beginning of every grb match

Works almost perfectly
My game freezes for like 5 seconds at the beginning of a Ground RB match and then is completely fine, which is a known issue on Linux

Runs perfectly out of the Box
Raytracing can't be enabled on AMD cards under linux (for now)

LD_PRELOAD="" game-performance mangohud %command%
Game launched fine, but at first I experienced some weird and unexplainable stutters. It wasn't exactly unplayable, but definitely annoying and not smooth.
Then I added LD_PRELOAD (as shown in my launch options), and suddenly everything started running much smoother — like I had just taken some kind of magic pill. The stuttering was completely gone.
For the record, this little trick (using LD_PRELOAD) tends to fix stuttering issues for me in a lot of other games too, not just War Thunder.

Works, minor freeze not afftecting gameplay
3 second freeze at match spawn
Slowness in menu, propably just optimization, fine in game. 1-2 freezes for ~3 seconds at the start of the match

Works out the box. I have no need to run proton since the fps is on par or better than Windows.
I have no need to run proton since the fps is on par or better than Windows. When you get into a game the game tends to freeze but tabbing in and out resolves it. Overall 9/10

Also tested on my laptop
After trying War Thunder on my desktop, I gave it a spin on my laptop as well. Same great experience overall! Using the standard client (about 60GB instead of the ultra-quality models) and running on medium settings. No special launch parameters needed - just installed and played. Gets over 120 FPS consistently on my 144Hz laptop screen in pretty much any situation. Never drops frames, no stutters, zero crashes. Really impressed that it runs this smoothly on laptop hardware too. Runs perfectly without any tweaking needed!

__NV_PRIME_RENDER_OFFLOAD=1 __GLX_VENDOR_LIBRARY_NAME=nvidia gamemoderun mangohud %command%
The game works flawlessly out of the box. Performance and optimization are excellent, even on absolute maximum graphics settings. The full client with ultra-quality models (approximately 120GB) runs perfectly. No special configuration required for the native Linux version. The game installs and runs without any issues. The only limitation at the moment is that ray tracing features are not available in the native Linux version. According to the developers, these features will be added to the Linux version at a later date. War Thunder is one of the best native Linux games available. The experience is outstanding with no performance issues, crashes, or significant limitations that affect gameplay.

MANGOHUD=1 MANGOHUD_CONFIG=position=top-right %command%
Game freezes at the beginning of a match for like 2 seconds then runs perfecty

It's very playable on X11.
occasionally the screen flashes white
I had to use my WM's fullscreen instead of the in game one, but only on some Wayland compositors (namely Hyprland).
It's not a native Wayland game which probably explains this.
Frequently crashes on Wayland so I have been forced to play on X11 for the time being.

Native version runs without any issues
No problems with native, constant crashes with proton