/usr/lib/x86_64-linux-gnu/geany-plugins/libgeanypluginutils.so.0 is in geany-plugins-common 1.32+dfsg-3.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/geany-plugins/libgeanypluginutils.so.0.0.0