

Runs on linux

Works without any tinkering
Small performance problems with anti-aliasing
Anti-aliasing makes this run a bit slow but that's probably not unique to Linux
Works perfectly fine out of the box
plug and play. works with standard proton from steam

Tried to decrease graphics quality from default to lower values. Set max FPS to 40.
Some elements are hard to read, for example, supported buttons to press showed at the bottom of the screen during the game intended as tips.
At cust scenes and attacks the FPS drops from 40 to 14.
The game several times got into "frozen" state. In this state the graphics does not change on screen, but if I click on buttons I can hear a click sound effect from the game.
The game "freezes" a lot, causing it to be unplayable.
This game is not optimized for Steam Deck. I can't believe it got the green compatibility mark. The main problem is that the game heats too much the Steam Deck and drains lot of battery. I tried to reduce the graphics settings but it didn't help me. In my case 30 min of game play drained the battery from 90% to 65%. That's too much. Besides there are bugs and the game often stops working. In terms of optimization for Steam Deck, the game looks very raw and unfinished.
Set Steam Refresh Rate to 40 and frame limit to 40 as well (via ●●● button, under battery). In-game options, resolution to: 1280 x 720, graphic quality to Medium.
Text for the most part are readable (story/narrative, dialogues, conversation), however, there are still some texts that are too small to read but they are not all that important to the game anyways.
Been enjoying the game so far, verified steam deck game that runs well once you've made the adjustments.
A flawless experience on stock proton.
I encountered pretty much zero issues with this one after playing through the entire game. Considering it performed rather well and plays great with both mouse/keyboard as well as gamepad, I fully expect this to be a great title for the Steam Deck as well.
Works with Proton stock out of the box. No need for thinkering or init parameters, at least in my experience.
I have not yet played the title for too long, but figured it might help having some compatibility review posted, as there was none for PC at the time I posted

Demo currently not available, but I copied a backup folder of the demo installation from PC.
30FPS limit is very much suggested. Game is a major battery drain at 25 watts during combat. FPS varies WILDLY overall.
Some UI descriptions during battle were being slightly cropped off screen.
Doesnt matter much for turn based RPGs, but even the main menu was 17fps, much of battles were varying from teens to 50s. All over the place.
So I copied the installation folder of the demo that was previously available. You can seek out the early access demo yourself. Game is set to release later this year. Anyway, I told Steam to import the EXE and set to ProtonGE 7-24 and after a very long initial load screen with game artwork in the background, it finally passed and the game was largely a good experience after. FPS fluctuates wildly but it works. Here's an example during combat.
The final version of the game will hopefully have graphical settings to tweak and optimize things far better. It's playable at least.