Hi,
The font issue isn’t unique to the 0.39 build, unfortunately, and I don’t have a solution for you (other than to use the appimage).
I believe it’s down to distro and desktop differences, but I don’t have a good lead on a solution.
Related post for this issue: https://itch.io/t/2130290/font-missing-in-file-explorer-on-linux-fedora-36-snap-package-install