/usr/share/kwin/scripts/ is in kwin-data 4:5.5.5-0ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/kwin/scripts/desktopchangeosd/
/usr/share/kwin/scripts/desktopchangeosd/contents/
/usr/share/kwin/scripts/desktopchangeosd/contents/ui/
/usr/share/kwin/scripts/desktopchangeosd/contents/ui/main.qml
/usr/share/kwin/scripts/desktopchangeosd/contents/ui/osd.qml
/usr/share/kwin/scripts/desktopchangeosd/metadata.desktop
/usr/share/kwin/scripts/enforcedeco/
/usr/share/kwin/scripts/enforcedeco/contents/
/usr/share/kwin/scripts/enforcedeco/contents/code/
/usr/share/kwin/scripts/enforcedeco/contents/code/main.js
/usr/share/kwin/scripts/enforcedeco/metadata.desktop
/usr/share/kwin/scripts/minimizeall/
/usr/share/kwin/scripts/minimizeall/contents/
/usr/share/kwin/scripts/minimizeall/contents/code/
/usr/share/kwin/scripts/minimizeall/contents/code/main.js
/usr/share/kwin/scripts/minimizeall/metadata.desktop
/usr/share/kwin/scripts/synchronizeskipswitcher/
/usr/share/kwin/scripts/synchronizeskipswitcher/contents/
/usr/share/kwin/scripts/synchronizeskipswitcher/contents/code/
/usr/share/kwin/scripts/synchronizeskipswitcher/contents/code/main.js
/usr/share/kwin/scripts/synchronizeskipswitcher/metadata.desktop
/usr/share/kwin/scripts/videowall/
/usr/share/kwin/scripts/videowall/contents/
/usr/share/kwin/scripts/videowall/contents/code/
/usr/share/kwin/scripts/videowall/contents/code/main.js
/usr/share/kwin/scripts/videowall/contents/config/
/usr/share/kwin/scripts/videowall/contents/config/main.xml
/usr/share/kwin/scripts/videowall/contents/ui/
/usr/share/kwin/scripts/videowall/contents/ui/config.ui
/usr/share/kwin/scripts/videowall/metadata.desktop