/usr/lib/x86_64-linux-gnu/refdbg/libgobject-2.0.so.0 is in libglib2.0-0-refdbg 2.32.1-0ubuntu2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/refdbg/libgobject-2.0.so.0.3200.1