/usr/lib/x86_64-linux-gnu/libnm-glib-vpn.so is in libnm-glib-vpn-dev 1.10.6-2ubuntu1.1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libnm-glib-vpn.so.1.2.0
/usr/lib/x86_64-linux-gnu/libnm-glib-vpn.so.1.2.0