/usr/lib/x86_64-linux-gnu/libgnuradio-fcdproplus.so.0 is in libgnuradio-fcdproplus0 3.7.24.cf5db38-5.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libgnuradio-fcdproplus.so.0.0.0