/usr/lib/libreoffice/share/extensions/canzeley-client/icons is in libreoffice-canzeley-client 0.5.0-2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/libreoffice/share/extensions/canzeley-client/../../../../../share/libreoffice-canzeley-client/icons