Hi there,
working in Ubuntu 21.10 (Ubuntu Default Gnome Desktop Environment) it seems not a to be a Wayland issue because in a Wayland session the tray icon does not show up instead a is thrown at me, see: Client GUI on Ubuntu 21.10 in a Wayland session shows GTK assertion error
With a Xorg session, I can reproduce the "Could not load password file! " error @joe mentioned in the top posting of this thread.