/usr/lib/x86_64-linux-gnu/libcogl-gst.so.20 is in libcogl-gst20 1.22.2-3.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libcogl-gst.so.20.4.2
/usr/lib/x86_64-linux-gnu/libcogl-gst.so.20.4.2