Comment 30 for bug 1274740

The usage of XDG_CURRENT_DESKTOP in nautilus should be fixed. Most of the patches predate the standardisation of XDG_CURRENT_DESKTOP which now allows for multiple desktop names.

As for "GNOME-Flashback:Unity" vs "GNOME-Flashback:GNOME", switching would mean going back to gnome-settings-daemon/gnome-control-center. Does flashback have full support now for monitor config, idle monitor, input device settings and other bits that were removed from gnome-settings-daemon since 3.10. You will probably find that many apps will also switch to using CSD's and appmenu's (as a button), rather than traditional menus.