/usr/share/qtpositioning5-doc-html/html is in qtlocation5-doc-html 5.9.5+dfsg-0ubuntu2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/qtpositioning5-doc-html/../qt5/doc
/usr/share/qtpositioning5-doc-html/../qt5/doc