Music does not play.

To get music to work I had to install directmusic with protontricks. Before that, permissions had to be given to the proton folder.

To do this, go to Home/.local/share/Steam/steamapps/common. Then right click on the proton folder that the game is using (Proton 7.0 in my case) and go to properties. Go to Permissions and make Owner, Group, and Others have "Can View & Modify Content" and check "apply changes to all subfolders and their contents (not sure if all three need it, but it's what I did).

After permissions have been given, open console and execute the following command: /usr/bin/flatpak run --branch=stable --arch=x86_64 --command=protontricks com.github.Matoking.protontricks 39150 directmusic

Music should work now.