/usr/lib/libSceneGraphVisualization.so.4 is in libigstk4 4.4.0-2build2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/libSceneGraphVisualization.so.4.4.0
/usr/lib/libSceneGraphVisualization.so.4.4.0