Logitech F310 had wrong mappings, no way to remap in the game either
Game is now working on recent versions of Proton!
Crashes after splash screen
Doesn't work when launched through steam, but you can launch the game by (if you're on Firefox) going to "file:///home/$USER/.steam/steam/steamapps/common/Future%20Proof/www/index.html" replacing $USER with your user for your steam account assuming you have a ordinary installation.
Runs now out of the box for the first time for me, but it is instable and only loads in some cases, if it crashed, I just tried it again until it worked (~1 out 5 times).
Game crashes directly after splash screen when trying to play through Proton 4.2-3. Because the game is an RPG Maker MV game, you can play it by opening Future Proof/www/index.html in your web browser as a temporary workaround.
Directly crashes after start.
Game crashes after the introduction. If you skip the introduction, it goes in game but crashes shortly after.
Crashes immediately after introduction, unable to get to any actual gameplay