/usr/lib/libInspector.so is in gworkspace.app 0.8.8-1.2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/GNUstep/Frameworks/Inspector.framework/Versions/Current/libInspector.so
/usr/lib/GNUstep/Frameworks/Inspector.framework/Versions/Current/libInspector.so