Have been using desktop Linux for almost 2 decades, My last 2 workplaces have been Linux desktop centric. Helped deploy quite a few Linux workstations.
I don't know many people that use Gnome.
Most use either KDE or some tiling WM (or some custom fork of Gnome2/3 that looks nothing like default gnome).
When Ubuntu dropped unity, some people went to gnome, some stayed but at least in my circles most bounced off.
On the cloud deployments it doesn't matter as they are accessible via ssh and cloud shells, and X Windows servers can be mapped to single windows.
Most of the people that I know that use Linux desktop are developers, and they generally don't use Gnome.
On servers sure its RedHat or CentOs or Ubuntu/Debian
But desktops are Ubuntu variants, then Fedora. Don't know anyone that uses RH or CenOS desktops.