This file is indexed.

/usr/lib/x86_64-linux-gnu/libQt5WebEngineWidgets.so.5.7 is in libqt5webenginewidgets5 5.7.1+dfsg-6.1.

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

It is a symlink to /usr/lib/x86_64-linux-gnu/libQt5WebEngineWidgets.so.5.7.1