I've been trying to overcome the GDM3 greeter problem that's described in KB https://kb.vmware.com/s/article/79640
Despite implementing the workaround the login screen still displays the symptoms from the KB
I thought that LightDM could be a workaround to the GDM3 issues, but when I dpkg-reconfigure to lightdm, I am unable to log in to the desktop pool whatsoever.
Is LightDM not a valid greeter for a Ubuntu 20.04 Horizon 8 Desktop pool - or do I need some additional config?
Please execute "dpkg-reconfigure gdm3" again, then re-install Linux viewagent, then update /usr/share/applications/org.gnome.Shell.desktop as KB required, then reboot, and have a try.
If it still does not work, could you please paste the content here for org.gnome.Shell.desktop? Thanks.