My config.scm installs EXWM + StumpWM, but not GNOME.
Before the last core-update, GDM would only suggest the 2 window
managers.

After a recent Guix pull followed by a `guix system reconfigure', GDM
also suggests GNOME.  If I select it, it fails to log in, which I
suppose is expected since it's not installed.

I believe the GNOME entry in GDM should only appear if GNOME is installed.

-- 
Pierre Neidhardt
https://ambrevar.xyz/