/usr/lib/x86_64-linux-gnu/libgnuradio-iio.so is in gr-iio 0.2.36-2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libgnuradio-iio.so.0
/usr/lib/x86_64-linux-gnu/libgnuradio-iio.so.0