/usr/lib/x86_64-linux-gnu/libgps.so.21.0 is in libgps21 3.11-3.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libgps.so.21.0.0
/usr/lib/x86_64-linux-gnu/libgps.so.21.0.0