/usr/lib/x86_64-linux-gnu/libre2.so.4 is in libre2-4 20180201+dfsg-2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libre2.so.4.0.0
/usr/lib/x86_64-linux-gnu/libre2.so.4.0.0