/usr/lib/x86_64-linux-gnu/libpolkit-qt-agent-1.so.1 is in libpolkit-qt-1-1 0.112.0-4.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libpolkit-qt-agent-1.so.1.112.0
/usr/lib/x86_64-linux-gnu/libpolkit-qt-agent-1.so.1.112.0