Yes, I noticed that too. I think its probably a bug in the Linux version I gather cause the Windows version runs
fine. You try wine or PlayOnLinux and see if that works. Edit: I found out wine/playonlinux gets around this. Try it out.
You can actually run the windows version on Linux. Just install wine and the itch.io app. Then from itch.io app click on install and choose windows version. You can run it afterwards. Let me know if you still have trouble. I will try to help. Unfortunately, the Linux version might be a broken build.