/usr/include/x86_64-linux-gnu/qt5/Qt3DCollision/ is in qt3d5-dev 5.5.1-4ubuntu3.
This file is owned by root:root, with mode 0o755.
..
/usr/include/x86_64-linux-gnu/qt5/Qt3DCollision/QAbstractCollider
/usr/include/x86_64-linux-gnu/qt5/Qt3DCollision/QBoxCollider
/usr/include/x86_64-linux-gnu/qt5/Qt3DCollision/QCapsuleCollider
/usr/include/x86_64-linux-gnu/qt5/Qt3DCollision/QCollisionAspect
/usr/include/x86_64-linux-gnu/qt5/Qt3DCollision/QGeometryCollider
/usr/include/x86_64-linux-gnu/qt5/Qt3DCollision/QSphereCollider
/usr/include/x86_64-linux-gnu/qt5/Qt3DCollision/Qt3DCollision
/usr/include/x86_64-linux-gnu/qt5/Qt3DCollision/Qt3DCollisionDepends
/usr/include/x86_64-linux-gnu/qt5/Qt3DCollision/Qt3DCollisionVersion
/usr/include/x86_64-linux-gnu/qt5/Qt3DCollision/qabstractcollider.h
/usr/include/x86_64-linux-gnu/qt5/Qt3DCollision/qboxcollider.h
/usr/include/x86_64-linux-gnu/qt5/Qt3DCollision/qcapsulecollider.h
/usr/include/x86_64-linux-gnu/qt5/Qt3DCollision/qcollisionaspect.h
/usr/include/x86_64-linux-gnu/qt5/Qt3DCollision/qgeometrycollider.h
/usr/include/x86_64-linux-gnu/qt5/Qt3DCollision/qspherecollider.h
/usr/include/x86_64-linux-gnu/qt5/Qt3DCollision/qt3dcollision_global.h
/usr/include/x86_64-linux-gnu/qt5/Qt3DCollision/qt3dcollisionversion.h