/usr/lib/libosgEarthFeatures.so.5 is in libosgearthfeatures5 2.9.0+dfsg-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/libosgEarthFeatures.so.2.9.0
/usr/lib/libosgEarthFeatures.so.2.9.0