That may be true but `TrayIcon` without `OnlyShowIn` violates the XDG spec, which in my eyes is a more severe violation than having the *additional* requirement by SUSE to hava a valid subcategory. brp-check-suse and update-desktop-file actually allow Utility;X-SUSE-DesktopUtility. How about that one? I updated the wiki for the SUSE guidelines to list it. https://en.opensuse.org/openSUSE:Packaging_desktop_menu_categories#Utility