/usr/lib/GNUstep/Bundles/libgnustep-art-022.bundle/libgnustep-back-022 is in gnustep-back0.22-art 0.22.0-1ubuntu1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/GNUstep/Bundles/libgnustep-art-022.bundle/libgnustep-art-022