Comment 15 for bug 1550210

David, Ubuntu GNOME hides app launchers by creating .desktops in /usr/share/gnome/applications/ with NoDisplay=true

https://bazaar.launchpad.net/~ubuntu-gnome-dev/ubuntu-gnome-default-settings/ubuntu/files/head:/usr/share/gnome/applications/

For Budgie, I'd want to know what the output of $XDG_DATA_DIRS is. In GNOME (on X; I'm missing some environment variables in Wayland), it's

/usr/share/gnome:/usr/local/share/:/usr/share/:/var/lib/snapd/desktop

According to the final section of the below specification, .desktops with the same name that come first should be used so that's why /usr/share/gnome/applications/ overrides /usr/share/applications/

https://standards.freedesktop.org/desktop-entry-spec/desktop-entry-spec-latest.html#desktop-file-id