/usr/lib/x86_64-linux-gnu/libopts.so.25 is in libopts25 1:5.18.4-3.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libopts.so.25.16.0
/usr/lib/x86_64-linux-gnu/libopts.so.25.16.0