The gameplay functions perfectly using proton 5.13-6 on intel HD4000 integrated graphics.

That being said:

The model geometry of the characters displays incorrectly, some models have streched out hands or feet, the face of the character get's obscured or parts of the model float above or below the characters feet and hands with a very noticeable wide gap.

When playing, certain colors/textures of the enviroment sometimes display in the wrong color or a very dark blue color

The graphical errors in the models are most clear on the character select screen. But do happen in the game while playing.

But apart from this, the game is functioning correctly.

Performance problems occur on my hardware when setting the graphical quality on high. When i turn this setting on high the title screen graphics display a dark blue plane instead of the illustration you usually see.

When i turn the graphics quality on medium or low i notice no performance problems on my hardware.