Following instructions sometimes the snaps e.g. Bitwarden start up in an app-VM sometimes they do not.
If they do not start up, no message is issued.
If they start up and the Template: fedora-34 is openend, then snap list reports no snaps are installed - in contrast to the just opened one.
Update: @ng0177 ran into issues with installing snaps in fedora-based qubes. Discussion followed in.