gamescope-session-steam-return-0.0.3.git015e09-alt1.1.x86_64 freedesktop-categories warn Menu-related Additional Categories (http://standards.freedesktop.org/menu-spec/latest/apa.html) not found in /usr/share/applications/steam_return.desktop. Please add it or report a bug against this test if you already have registered one (not including menu unrelated ones as Core or Qt).;