/usr/lib/x86_64-linux-gnu/libgconf-2.so.4 is in libgconf-2-4 3.2.6-0ubuntu2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libgconf-2.so.4.1.5
/usr/lib/x86_64-linux-gnu/libgconf-2.so.4.1.5