/usr/share/kservices5/ is in systemsettings 4:5.12.4-0ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/kservices5/settings-appearance-applicationstyle.desktop
/usr/share/kservices5/settings-appearance-color.desktop
/usr/share/kservices5/settings-appearance-font.desktop
/usr/share/kservices5/settings-appearance-icons.desktop
/usr/share/kservices5/settings-appearance-workspacetheme.desktop
/usr/share/kservices5/settings-appearance.desktop
/usr/share/kservices5/settings-classic-view.desktop
/usr/share/kservices5/settings-hardware-display.desktop
/usr/share/kservices5/settings-hardware-input.desktop
/usr/share/kservices5/settings-hardware-multimedia.desktop
/usr/share/kservices5/settings-hardware-peripherals.desktop
/usr/share/kservices5/settings-hardware-powermanagement.desktop
/usr/share/kservices5/settings-hardware-removable-storage.desktop
/usr/share/kservices5/settings-hardware.desktop
/usr/share/kservices5/settings-icon-view.desktop
/usr/share/kservices5/settings-network-bluetooth.desktop
/usr/share/kservices5/settings-network-connectivity.desktop
/usr/share/kservices5/settings-network-networksettings.desktop
/usr/share/kservices5/settings-network.desktop
/usr/share/kservices5/settings-personalization-accessibility.desktop
/usr/share/kservices5/settings-personalization-accountdetails.desktop
/usr/share/kservices5/settings-personalization-applications.desktop
/usr/share/kservices5/settings-personalization-notification.desktop
/usr/share/kservices5/settings-personalization-regionalsettings.desktop
/usr/share/kservices5/settings-personalization.desktop
/usr/share/kservices5/settings-sidebar-view.desktop
/usr/share/kservices5/settings-workspace-desktopbehavior.desktop
/usr/share/kservices5/settings-workspace-search.desktop
/usr/share/kservices5/settings-workspace-session.desktop
/usr/share/kservices5/settings-workspace-shortcuts.desktop
/usr/share/kservices5/settings-workspace-windowmanagement.desktop
/usr/share/kservices5/settings-workspace.desktop