Issue 2813 says gsetting would fix the problem
The issue #2813 that deeplow linked says: overriding
“org.gnome.desktop.preferences.wm.preferences” to something like “appmenu:”
would fix the problem.
Both the minimal and regular fedora-33 template have the same xml overrides
Both the minimal and regular fedora 33 template have xml files that describe the override at “/usr/share/glibg-2.0/schemas/*.gschema.override”.
list of override files
./usr/share/glib-2.0/schemas/20_org.mate.NotificationDaemon.qubes.gschema.override
./usr/share/glib-2.0/schemas/20_org.gnome.nautilus.qubes.gschema.override
./usr/share/glib-2.0/schemas/20_org.gnome.desktop.wm.preferences.qubes.gschema.override
./usr/share/glib-2.0/schemas/20_qubes-gui-vm.gschema.override
./usr/share/glib-2.0/schemas/org.gnome.Terminal.gschema.override
./usr/share/glib-2.0/schemas/20_org.gnome.settings-daemon.plugins.updates.qubes.gschema.override
Somehow only the regular template actually apply those overrides.
Recompile the schema doesn’t help
This link says I can “compile” the xml files: 20.04 - How to properly configure a dconf schema from a gschema.xml file? - Ask Ubuntu
I do the following:
cd /usr/share/glib-2.0/schemas
sudo glib-compile-schemas .
But the resulting gschema.compiled does not change upon re-compilation.