I've finished the tech demo via Proton Hotfix, here's the main issues I have:
- Camera sensitivity on controller is too high (I had to switch to keyboard and mouse after a few minutes)
- There's a constant buzzing that plays whenever the game's open, its pitch seems to be tied to the camera angle in some way
- Button prompts for controller don't appear until you press the button that would've appeared
Aside from that, it's a pretty solid demo. Looking forward to the game's full release!