Works perfectly

Impossible d'y jouer dans de bonne conditions en HDR, sinon nickel
Si lanceé avec option de lancement HDR le jeu tourne très mal. Sans HDR tourne nickel
Tourne bien
Didn't play for long on Linux but no issues here.

PROTON_ENABLE_WAYLAND=1 LD_PRELOAD="" game-performance dlss-swapper %command%

Running great on CachyOS with a 3080ti
Running great on CachyOS with a 3080ti so far! Playing at 1440p with DLSS in DX12. I'm new to the world of Linux gaming so this is great so far!
Runs flawless
Game runs essentially perfect, just make sure to switch the graphics API in-game to vulkan on first launch

works out of box but I always use GE Proton

mangohud gamemoderun %command% --nologo --waitforpreload
random crashes every few minutes, sometimes for several hours without any problems
I had problems with the default settings and the game wouldn't start with the latest proton version on my current distro, so I switched to the GE version. Other distros i have used have varying problems, sometimes it works and sometimes it doesn't.

occasional crackling
Some shader effects (especially some fire variations) cause slowdowns
Some hiccups due to it still being beta and some PoE jank remains (but probably does on Windows,too)
MANGOHUD=1 %command%
Sounds turns off and on for a split second randomly

good gameplay if you never click steam buttons while playing and if you dont care about fps because windows perfomance about 2 times faster
crackling on low tdp and low battery(prob normal steamos behaivor)
rog ally controller is quite botched in steamos(sometimes detected as rog ally controller sometimes xbox sometimes xbox one) and when using steam buttons (rog button and 3 lines) poe thinks that you used keyboard and disconnects your controller, even sometimes kicks you because of that or losing controller whatsoever.
a lot less fps 50-60 while on windows 120 (both fsr (rsr on windows) downscaling to 1280x720 and simmilar settings)

game-performance %command%

Some interfaces are hard to read, small letters.
Lag spikes practically every few seconds.
Significant input delay. If lucky it just disappears after restarting the game. But with every zone change there is a chance it comes back.

mangohud gamemoderun %command% --nologo --waitforpreload
Window mode doens't work. Switched to Fullscreen Windowed mode
Windowed mode not working for me

works perfectly
Works perfectly, arguably better than on windows

had 15fps when running vulkan shaders, i swapped to directx12 in the ingame menu and the game was running perfectly

Personally am using ultra settings with DLSS on balanced mode. Runs great, slight drops in the NPC towns and with heavy particles. Consistently around 80-100FPS otherwise.

Vulkan, resolution 800x600, frameGen FSR 3.1.2 + dlss, all low setting, audio quality low, fps lock 30, steam deck FSR 5
in some places
game is not optimized for steam deck, almost all the time there were lags
To play this game at the moment is to kill yourself and your console, the game is maximally not optimized for the game, now the game version is 0.2.0 until now there are no changes for the better. I'm just shocked that this game has a platinum badge.

LD_PRELOAD=/usr/lib/libgamemode.so mangohud %command% --nologo --waitforpreload
If you use Fullscreen; sometimes when you activate another window and then go back to PoE2 the game will switch to Windowed mode and you have to change the setting back to fullscreen.
The Game is still in Early Access and needs optimisation.
The game has a "Adaptive Resolution" feature to maintain framesrates when there is a lot happening on the screen (This is a feature and not a bug); The main problem is that it does not take much for this feature to come into use and the game does not look very good when this happens.
On occassion the adaptive resolution feature does not help and the framerate will drop to unplayable levels.
However, windows users have reported the same performance issues.
The game supports Vulkan which is great for Linux users as it saves time loading shaders, as well as disk space to store them.

gamemoderun mangohud %command% --nologo --waitforpreload
To get most of it you should use sched-ext best one for me was scx_rusty
got me more 10-20 FPS
The most crazy trick which idk why it work and gives me more ~20-30FPS! is to change Renderer from DirectX12
to Vulkan
and save then go back to DirectX12
and save! thats magicly adds more FPS!!.
TLDR:
I started with 160-164FPS, With scx_rusty
got 170-180FPS, With renderer trick got 200-210FPS!.
Note:
Im using cachyos-eevdf
kernel
Works great. Both Vulkan and DirectX works, but get better framerate with Vulkan (144fps).

Game works pretty much out of the box with the Vulkan Renderer now. I get 115fps with Vulkan vs 90fps with DX12.

Constant random crashes after the last update, I played the first 70hrs with almost no crashes at all but now is currently unplayed.
Constant random crashes after the last update, I played the first 70hrs with almost no crashes at all but now is currently unplayed.
When the game crash my pc completely freeze and I'm force to reboot.
There is some issue with the last update I have constant crashes very often forcing me to reboot.

Постоянные лаги и фризы при минимальных настройках, резкое падение FPS в боях и практически нечитабельная русская локализация
При выборе русского языка шрифты почти неразборчивы, а некоторые объекты выходят за пределы экрана. Читать длинные описания довольно сложно.
Регулярно происходили зависания кадров. Чем дальше я продвигался по сюжету (я дошёл до четвёртой локации), тем сильнее становилась фризы
Я играл на Steam Deck OLED. Я потратил час, настраивая параметры, и в итоге играл на минимальных настройках с FSR «performance», 36 FPS, vsync. Несмотря на это, регулярно происходили стеттеры. Например, когда ты заходишь в бой с боссом, и он начинает свою анимацию атаки, FPS падает до 15-20, и ты получаешь урон.

LD_PRELOAD="" %COMMAND%
While running the game, even in my relatively empty hideout, I would notice a wierd "micro-pause" that would occur every few seconds. I found it sufficiently annoying that I was not playing because of it.
Nothing anomalous in the in game FPS/latency charts seemed to correspond.
Someone else posted something similar indicating that using WIFI under Linux could cause this "micro-pause" / "brief rubber band".
I switched to a wired internet connection and it solved the issue The game is now perfectly smooth.
Seems to be high CPU use or latency issue re: Wifi in Linux?
If you are running into any wierd issues and you are connecting over Wifi - try a wired connection. I was shocked, but it worked for me.

LD_PRELOAD="" %command%
Was a slight stuttering issue for me since the new patch, adding the custom command did the trick. However I've heard it happened to a lot of people so it might not be Linux related. Using native Vulkan rendering ingame.

LD_PRELOAD=/usr/lib/libgamemode.so mangohud %command% --nologo --waitforpreload
Vulkan works much better for me than DX12. Try it only with newer driver than 560.xx

DRI_PRIME=1 %command%
Стартеры очень долгие. При кастах мобов можно по секунде стоять с зависшей картинкой.
Иногда крашится игра
Запускаю игру на внешней видюхе 5700 ХТ, подключеной через тандерболт. Производительность неадекватная - шаг влево в право от настроек, даже на уменьшение, приводит игру в состеяние овоща: 0-10 FPS при движении. Состояние игры ужасно

The game is hard at the beginning, but it becomes awesome after you learn it and progress through campain.
LD_PRELOAD=/usr/lib/libgamemode.so mangohud %command% --nologo --waitforpreload
Everything just works. Vulkan gives me better FPS than DX12, so with nvidia 570.xx drivers I suggest to switch to it.

Aside from the skill preview video problem, everything else seems to work fine. (Could not test intro cinematic.)
Skill preview videos mute all game sound when using Vulkan renderer, and cause a loud noise when using a surround sound (i.e. non-stereo) audio output.
No issues installing or running. Able to run at max settings at 144FPS to match the monitor. Game runs smooth and doesn't contain any glitch

All the potential is behind dx12(at least for my case) (you should set it without mangohud)
Very nice performance, same as windows even with vulkan or dx12