It does, but it makes it very cumbersome to back up & sync your saves. And there's probably other issues I just haven't run into yet. Also, the Steam version includes everything that's needed to run natively, but it uses Proton anyway.
I'll try again to add more platforms to Steam when the next build comes out, but last time I couldn't get it to work... Steam really is way too complicated to release on compared to itch. TwT