
Text is reather small. I had a hard time reading some of it. Particularly the skill tool tips on the action bar.
The game plays well. However, the text and characters/mobs on screen are very small and hard to make out details on them. Not really a big deal since they get dwarfed by the attack animations/effects. Viewing your own character can be a little eyestraining. Just know that your character is in the middle of the screen.

Some hiccups on occasion

gamemoderun %command%
If you want opengl rendering use gamemoderun %command% -force-glcore in launcher settings otherwise mark proton I used experimental on arch and the game run like a jewel.

gamemoderun %command% -force-glcore
On Native without any arguments or just with gamemoderun the game crashes when its being minimized. It can be fixed by adding -force-glcore and forcing the game to run on OpenGL. The performance is similar. The game works on Proton. xWayland is stable and you can minimize the game. The Performance is slightly worse than Native. Native wayland with Proton-GE and PROTON_ENABLE_WAYLAND=1 tanks FPS (sub 60), so either play on xWayland or Native Vulkan (with potential crashes) / OpenGL

Wayland: Fullscreen option in game caused stability issues on tiling WM (Jay) -> Disable in-game fullscreen and let the window manager handle it
On Wayland: Controller input is not detected On X11 (by using SDL_VIDEODRIVER=x11): It worked as expected

LD_PRELOAD="" gamescope -W 2560 -H 1440 -f --adaptive-sync --mangoapp -- %command%
LD_PRELOAD="" needs to be added to the launch options for the game to not lag out after around 30 minutes due to a bug in DXVK. All other launch parameters are completely optional but this is how I like to run my games.

Game runs perfectly fine but having the game get choppy after a few minutes of gameplay is definetly not fun for the average gamer.
gamescope -W 2560 -H 1440 -b --adaptive-sync --mangoapp -- %command%
After around 20 - 30 minutes of gameplay the game suddenly starts to have consistent lag spikes making the game unenjoyable. This behaviour happens via Proton and Native runtimes.
Tried to run the game with -force-glcore as stated by the previous comment but this also did not change the performance issues. Proton versions I tried are proton-cachyos and Proton-GE9-27.

%command% -force-glcore
Tweak launching arguments
Game becomes laggy after playing for few rounds without making tweaks
Try adding -force-glcore to launch option! Doing that dramatically improves my experience.
Game works native, out of the box. Have fun :)

Runs Flawlessly
runs out the box. seems to run better than the windows version. just feels more snappier.
Works perfectly both native and default Proton
Works fine out of the box.

Talent tree and skill stacks are hard to see
fps suddenly drops with large number of enemies that are using skills all at the same time.

gamemoderun %command%
Support for controller navigation is incomplete
Sometimes crashes my whole PC on launch

Audio was BROKEN and crackling a lot. After fixing it with the launch option, the game runs perfectly.
PULSE_LATENCY_MSEC=60 %command%
Audio was BROKEN and crackling a lot. That's an occasional issue for Windows users too. But we can fix it completely by setting PULSE_LATENCY_MSEC=60.
Add the launch argument, otherwise you will have periodic audio crackling. Alternatively, you can run the native Linux version instead, which probably doesn't have the issue.
Startup has a bit of a slight hiccup on loading screen, but no issues after. 50+ hrs so far

Cannot get past the title screen, it locks up.
Tried several proton versions including experimental and proton-GE, and launch arguments. nothing works.

gamemoderun DXVK_ASYNC=1 %command%
runs slightly worse than on windows in heavy spell settings (minute 7+). no difference prior to that
Game ran as if native, very smooth experience.
Roda perfeito, nenhum problema significativo, acredito quem tenha um bom hardware terá uma excelente experiência.
Quando tem skills do tipo batida e muitos mobs meu sistema ficou muito lento, fora isso foi uma belezinha.
Debuff icons and counts are small. Some tooltips won't open unless hovered with the mouse cursor
Using the mouse cursor too long prevents the detected controller from functioning in game, forcing a hard restart to restore functionality.
The achievements menu does not scroll with the cursor, making it impossible to see more than a handful of achievements.
The talent trees and other menu-based text can be hard to see.
Was getting ".exe not responding" message the second time I booted with Steam default. Switch to Proton Experimental fixed the issue.
only works well with Proton Experimental
When the game launched there was an issue with the native version that was quickly patched, hence the one rating below saying it never ran. Game works great now, dev seems to actually care about Linux support which is nice. :)

Just installed and launched
gamemoderun mangohud %command%
Using fullscreen FSR 1.0 via GE-Proton, 900p upscaled to 1080p (i.e. lower ratio than AMD's Ultra Quality preset). Highest settings, everything on except trash mob HP bars. Smooth 60FPS with a 1050 Ti. Only stutters when picking up the boss "XP vacuum" crystal with a map full of unlooted XP.

There's a minior issue on the menu screen: it was probably designesd for higher resolutions and the icons for settings and exit game are a bit misplaced. Anyway, they still work fine. (Start for menu, select for exit)
Game itself runs perfectly

Just works

Runs out of the box
(Demo Version)

Won't run
Tried various proton versions - never ran

Game works just fine, although FPS on big crowds of enemies is slightly less then on Windows.