

It works great
Completed without any issues

Changing from windowed to fullscreen resulted in hanging.
Required proton GE 9-5 to get past candle tower cutscene, as suggested by madman. Proton experimental did not work.
Majority of game, several hours of it, playable without proton GE 9-5.

Worked Great.
Had some permision issues running it on secondary HHD, that proabaly could have been solved. Ended up installing it on my main SSD and running flawlessly since then.

It ran fine on defaults, if a little hot and heavy with the fan. Could probably tweak some Deck settings to minimize that.

forced 40fps
some menu texts were small
without GE-Proton9-5 game shows black screen after climbing tower

Works as intended without any issues. Proton Experimental

As of this writing, you will need Proton Experimental for cutscene playback.
gamemoderun mangohud %command%

I had no problems at all and performance was good. Cutscene at the end played normally so I was able to finish the game.

Due to the cutscene not playing, I ended up finishing the game on Windows.
Low framerate in one scene where there was a lot of particle effects
When you reach the top of a giant candle tower and light it, there's a cutscene after that couldn't be played, I only had a black screen.
Game runs great. Cutscenes could be afffected.
Cutscenes at the end of the game doesnt work properly and borked my end game.