I installed gnome-shell 3.30.2-0ubuntu1.18.10.1 on Ubuntu 18.10 and verified that the Ubuntu and GNOME sessions appear to work fine. Switching users works too.
I installed gnome-shell 3.30.2- 0ubuntu1. 18.10.1 on Ubuntu 18.10 and verified that the Ubuntu and GNOME sessions appear to work fine. Switching users works too.