/usr/ is in libkf5plotting-dev 5.44.0-0ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/include/
/usr/include/KF5/
/usr/include/KF5/KPlotting/
/usr/lib/x86_64-linux-gnu/qt5/
/usr/lib/x86_64-linux-gnu/qt5/mkspecs/
/usr/include/KF5/KPlotting/KPlotAxis
/usr/include/KF5/KPlotting/KPlotObject
/usr/include/KF5/KPlotting/KPlotPoint
/usr/include/KF5/KPlotting/KPlotWidget
/usr/include/KF5/KPlotting/kplotaxis.h
/usr/include/KF5/KPlotting/kplotobject.h
/usr/include/KF5/KPlotting/kplotpoint.h
/usr/include/KF5/KPlotting/kplotting_export.h
/usr/include/KF5/KPlotting/kplotwidget.h
/usr/include/KF5/kplotting_version.h
/usr/lib/
/usr/lib/x86_64-linux-gnu/
/usr/lib/x86_64-linux-gnu/cmake/
/usr/lib/x86_64-linux-gnu/cmake/KF5Plotting/
/usr/lib/x86_64-linux-gnu/cmake/KF5Plotting/KF5PlottingConfig.cmake
/usr/lib/x86_64-linux-gnu/cmake/KF5Plotting/KF5PlottingConfigVersion.cmake
/usr/lib/x86_64-linux-gnu/cmake/KF5Plotting/KF5PlottingTargets-debian.cmake
/usr/lib/x86_64-linux-gnu/cmake/KF5Plotting/KF5PlottingTargets.cmake
/usr/lib/x86_64-linux-gnu/qt5/mkspecs/modules/
/usr/lib/x86_64-linux-gnu/qt5/mkspecs/modules/qt_KPlotting.pri
/usr/share/
/usr/share/doc/
/usr/share/doc/libkf5plotting-dev/
/usr/share/doc/libkf5plotting-dev/copyright
/usr/lib/x86_64-linux-gnu/libKF5Plotting.so
/usr/share/doc/libkf5plotting-dev/changelog.Debian.gz