Linux puskom-ProLiant-DL385-Gen10 5.4.0-150-generic #167~18.04.1-Ubuntu SMP Wed May 24 00:51:42 UTC 2023 x86_64

//usr/share/xsessions/ubuntu.desktop

 [Desktop Entry]
Name=Ubuntu
Comment=This session logs you into Ubuntu
Exec=env GNOME_SHELL_SESSION_MODE=ubuntu gnome-session --session=ubuntu
TryExec=gnome-shell
Type=Application
DesktopNames=ubuntu:GNOME
X-Ubuntu-Gettext-Domain=gnome-session-3.0