/usr/lib/ is in libqapt-dev 3.0.4-0ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/x86_64-linux-gnu/pkgconfig/
/usr/lib/x86_64-linux-gnu/
/usr/lib/x86_64-linux-gnu/cmake/
/usr/lib/x86_64-linux-gnu/cmake/QApt/
/usr/lib/x86_64-linux-gnu/cmake/QApt/QAptConfig.cmake
/usr/lib/x86_64-linux-gnu/cmake/QApt/QAptConfigVersion.cmake
/usr/lib/x86_64-linux-gnu/cmake/QApt/QAptTargets-debian.cmake
/usr/lib/x86_64-linux-gnu/cmake/QApt/QAptTargets.cmake
/usr/lib/x86_64-linux-gnu/pkgconfig/libqapt.pc
/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_QApt.pri
/usr/lib/x86_64-linux-gnu/libQApt.so