As others have mentioned, there are many weird issues on Linux.
Aside from things like fullscreen not working, which were already mentioned, I also noted that, in windowed mode, the mouse is never hidden. It stays centered, but it never goes away and it's so distracting I can't keep playing it.
The funniest thing, though, is that running the Windows version on Wine actually works out of the box without any issues! So, for Linux users: just download the Windows version and you'll be fine.