/usr/ is in plasma-discover 5.6.2-1ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/
/usr/lib/x86_64-linux-gnu/
/usr/lib/x86_64-linux-gnu/qt5/
/usr/lib/x86_64-linux-gnu/qt5/qml/
/usr/lib/x86_64-linux-gnu/qt5/qml/org/
/usr/lib/x86_64-linux-gnu/qt5/qml/org/kde/
/usr/bin/
/usr/bin/plasma-discover
/usr/lib/x86_64-linux-gnu/qt5/qml/org/kde/discovernotifier/
/usr/lib/x86_64-linux-gnu/qt5/qml/org/kde/discovernotifier/libDiscoverNotifierDeclarativePlugin.so
/usr/lib/x86_64-linux-gnu/qt5/qml/org/kde/discovernotifier/qmldir
/usr/share/
/usr/share/applications/
/usr/share/applications/org.kde.discover.desktop
/usr/share/plasmadiscover/
/usr/share/plasmadiscover/featured.json
/usr/share/kxmlgui5/
/usr/share/kxmlgui5/plasmadiscover/
/usr/share/kxmlgui5/plasmadiscover/plasmadiscoverui.rc
/usr/share/doc/
/usr/share/doc/plasma-discover/
/usr/share/doc/plasma-discover/copyright
/usr/share/doc/plasma-discover/TODO.Debian
/usr/share/doc/plasma-discover/changelog.Debian.gz