Oh no!
I tested it with a couple of machines but didnt test on VMs.
I'm sorry!
Don't worry about it, you couldn't have possibly accounted for my scuffed setup xd
In the end I managed to get it working using Lilliana Raquel's tip: adding it to steam and using the Steam Play compatibility tool (version Proton Hotfix). I made a little tutorial, in case anyone has a similar problem:
The game itself was very heartfelt and touching in its honesty. It's amazing, how Neuro and co can inspire such emotions in her fans.
The background music was a really nice choice too - did you make it for this occasion? I couldn't find the title anywhere.
Thank you for making this, and I wish you the best!