That’s a bug. Should be fixed now.
The DebiChem team makes deb files and last time I checked, @RizzerOnGitHub was encouraging us to let them do updates. Otherwise, the GitHub build servers run on Ubuntu, so it shouldn’t be too hard to produce them.
As far as snaps, it’s an open issue: Snap package · Issue #920 · OpenChemistry/avogadrolibs · GitHub
I’m happy to help get pieces together, but as noted on the issue (and elsewhere on the forum) help is needed as far as snaps go.