/usr/lib/ is in libkf5newstuff-dev 5.44.0-0ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/x86_64-linux-gnu/libKF5NewStuff.so
/usr/lib/x86_64-linux-gnu/
/usr/lib/x86_64-linux-gnu/cmake/
/usr/lib/x86_64-linux-gnu/cmake/KF5NewStuff/
/usr/lib/x86_64-linux-gnu/cmake/KF5NewStuff/KF5NewStuffConfig.cmake
/usr/lib/x86_64-linux-gnu/cmake/KF5NewStuff/KF5NewStuffConfigVersion.cmake
/usr/lib/x86_64-linux-gnu/cmake/KF5NewStuff/KF5NewStuffTargets-debian.cmake
/usr/lib/x86_64-linux-gnu/cmake/KF5NewStuff/KF5NewStuffTargets.cmake
/usr/lib/x86_64-linux-gnu/cmake/KF5NewStuffCore/
/usr/lib/x86_64-linux-gnu/cmake/KF5NewStuffCore/KF5NewStuffCoreConfig.cmake
/usr/lib/x86_64-linux-gnu/cmake/KF5NewStuffCore/KF5NewStuffCoreConfigVersion.cmake
/usr/lib/x86_64-linux-gnu/cmake/KF5NewStuffCore/KF5NewStuffCoreTargets-debian.cmake
/usr/lib/x86_64-linux-gnu/cmake/KF5NewStuffCore/KF5NewStuffCoreTargets.cmake
/usr/lib/x86_64-linux-gnu/cmake/KF5NewStuffQuick/
/usr/lib/x86_64-linux-gnu/cmake/KF5NewStuffQuick/KF5NewStuffQuickConfig.cmake
/usr/lib/x86_64-linux-gnu/cmake/KF5NewStuffQuick/KF5NewStuffQuickConfigVersion.cmake
/usr/lib/x86_64-linux-gnu/cmake/KF5NewStuffQuick/KF5NewStuffQuickTargets-debian.cmake
/usr/lib/x86_64-linux-gnu/cmake/KF5NewStuffQuick/KF5NewStuffQuickTargets.cmake
/usr/lib/x86_64-linux-gnu/qt5/
/usr/lib/x86_64-linux-gnu/qt5/mkspecs/
/usr/lib/x86_64-linux-gnu/qt5/mkspecs/modules/
/usr/lib/x86_64-linux-gnu/qt5/mkspecs/modules/qt_KNewStuff.pri
/usr/lib/x86_64-linux-gnu/qt5/mkspecs/modules/qt_KNewStuffCore.pri
/usr/lib/x86_64-linux-gnu/libKF5NewStuffCore.so