I was navigating my filesystem with ncdu while I found this /usr/usr/lib64/qt5/plugins/designer/libQVTKWidgetPlugin.so and the offending package is ... sci-libs/vtk-8.1.0-r3 equery b /usr/usr/lib64/qt5/plugins/designer/libQVTKWidgetPlugin.so * Searching for /usr/usr/lib64/qt5/plugins/designer/libQVTKWidgetPlugin.so ... sci-libs/vtk-8.1.0-r3 (/usr/usr/lib64/qt5/plugins/designer/libQVTKWidgetPlugin.so)
*** This bug has been marked as a duplicate of bug 646422 ***