/usr/include/ is in libkf5itemviews-dev 5.18.0-0ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/include/KF5/
/usr/include/KF5/KItemViews/
/usr/include/KF5/KItemViews/kextendableitemdelegate.h
/usr/include/KF5/KItemViews/KFilterProxySearchLine
/usr/include/KF5/kitemviews_version.h
/usr/include/KF5/KItemViews/kcategorizedview.h
/usr/include/KF5/KItemViews/KCategorizedSortFilterProxyModel
/usr/include/KF5/KItemViews/ktreewidgetsearchlinewidget.h
/usr/include/KF5/KItemViews/kwidgetitemdelegate.h
/usr/include/KF5/KItemViews/KTreeWidgetSearchLine
/usr/include/KF5/KItemViews/kfilterproxysearchline.h
/usr/include/KF5/KItemViews/KCategorizedView
/usr/include/KF5/KItemViews/KCategoryDrawer
/usr/include/KF5/KItemViews/kcategorizedsortfilterproxymodel.h
/usr/include/KF5/KItemViews/KListWidgetSearchLine
/usr/include/KF5/KItemViews/KTreeWidgetSearchLineWidget
/usr/include/KF5/KItemViews/kcategorydrawer.h
/usr/include/KF5/KItemViews/kitemviews_export.h
/usr/include/KF5/KItemViews/KExtendableItemDelegate
/usr/include/KF5/KItemViews/KWidgetItemDelegate
/usr/include/KF5/KItemViews/ktreewidgetsearchline.h
/usr/include/KF5/KItemViews/klistwidgetsearchline.h