/usr/lib/x86_64-linux-gnu/libebackend-1.2.so is in libebackend1.2-dev 3.22.7-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libebackend-1.2.so.10.0.0
/usr/lib/x86_64-linux-gnu/libebackend-1.2.so.10.0.0