/usr/lib/x86_64-linux-gnu/ is in libkf5dbusaddons-dev 5.44.0-0ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/x86_64-linux-gnu/qt5/
/usr/lib/x86_64-linux-gnu/qt5/mkspecs/
/usr/lib/x86_64-linux-gnu/cmake/
/usr/lib/x86_64-linux-gnu/cmake/KF5DBusAddons/
/usr/lib/x86_64-linux-gnu/cmake/KF5DBusAddons/KF5DBusAddonsConfig.cmake
/usr/lib/x86_64-linux-gnu/cmake/KF5DBusAddons/KF5DBusAddonsConfigVersion.cmake
/usr/lib/x86_64-linux-gnu/cmake/KF5DBusAddons/KF5DBusAddonsMacros.cmake
/usr/lib/x86_64-linux-gnu/cmake/KF5DBusAddons/KF5DBusAddonsTargets-debian.cmake
/usr/lib/x86_64-linux-gnu/cmake/KF5DBusAddons/KF5DBusAddonsTargets.cmake
/usr/lib/x86_64-linux-gnu/cmake/KF5DBusAddons/KF5dbus.service.in
/usr/lib/x86_64-linux-gnu/qt5/mkspecs/modules/
/usr/lib/x86_64-linux-gnu/qt5/mkspecs/modules/qt_KDBusAddons.pri
/usr/lib/x86_64-linux-gnu/libKF5DBusAddons.so