/usr/lib/x86_64-linux-gnu/ is in plasma-pa 4:5.12.4-0ubuntu1.
This file is owned by root:root, with mode 0o755.
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/usr/lib/x86_64-linux-gnu/qt5/
/usr/lib/x86_64-linux-gnu/qt5/plugins/
/usr/lib/x86_64-linux-gnu/qt5/plugins/kcms/
/usr/lib/x86_64-linux-gnu/qt5/plugins/kcms/kcm_pulseaudio.so
/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/lib/x86_64-linux-gnu/qt5/qml/org/kde/plasma/
/usr/lib/x86_64-linux-gnu/qt5/qml/org/kde/plasma/private/
/usr/lib/x86_64-linux-gnu/qt5/qml/org/kde/plasma/private/volume/
/usr/lib/x86_64-linux-gnu/qt5/qml/org/kde/plasma/private/volume/PulseObjectFilterModel.qml
/usr/lib/x86_64-linux-gnu/qt5/qml/org/kde/plasma/private/volume/libplasma-volume-declarative.so
/usr/lib/x86_64-linux-gnu/qt5/qml/org/kde/plasma/private/volume/qmldir