/usr/lib/x86_64-linux-gnu/libbrial_groebner.so is in libbrial-groebner-dev 0.8.5-4.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libbrial_groebner.so.0.0.0
/usr/lib/x86_64-linux-gnu/libbrial_groebner.so.0.0.0