This file is indexed.

/usr/lib/x86_64-linux-gnu/liblightdm-qt5-3.so.0 is in liblightdm-qt5-3-0 1.26.0-0ubuntu1.

This file is owned by root:root, with mode 0o777.

It is a symlink to /usr/lib/x86_64-linux-gnu/liblightdm-qt5-3.so.0.0.0