hello, guys I see, to have 2 session managers installed so I need to logout the first one to login in the second one and rejoin my sessions. Ive tried systemctl list-unit-files | grep -E 'gdm|sddm|lightdm|ly'
sdDM gDM lightdDM ly these are Desktop Managers you can call them also session manager only wanted to make sure what is the issue.. usually you use one DM to start different sessions of one or more Desktops. To use a different DM you need to stop one to start another.. sudo systemctl stop sddm and sudo systemctl start lightdm per example.
(copied over from same question you shared on Telegram)