If they are composed of subproducts, products (eg: KF5, KDE PIM) have an autogenerated landing page made of a long description (= free text) + a table containing all subproducts.
Instead, it would be better that a product can set a landing page with links to other parts of the documentation AND a link to the autogenerated table. It would provide easier guiding for new users of the libraries
KApidox doesn't allow this yet, but it is doable.