/usr/lib/ is in libkf5coreaddons-dev 5.28.0-2.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/x86_64-linux-gnu/
/usr/lib/x86_64-linux-gnu/cmake/
/usr/lib/x86_64-linux-gnu/cmake/KF5CoreAddons/
/usr/lib/x86_64-linux-gnu/cmake/KF5CoreAddons/KF5CoreAddonsConfig.cmake
/usr/lib/x86_64-linux-gnu/cmake/KF5CoreAddons/KF5CoreAddonsConfigVersion.cmake
/usr/lib/x86_64-linux-gnu/cmake/KF5CoreAddons/KF5CoreAddonsMacros.cmake
/usr/lib/x86_64-linux-gnu/cmake/KF5CoreAddons/KF5CoreAddonsTargets-debian.cmake
/usr/lib/x86_64-linux-gnu/cmake/KF5CoreAddons/KF5CoreAddonsTargets.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_KCoreAddons.pri
/usr/lib/x86_64-linux-gnu/libKF5CoreAddons.so