As an example

There are 27 identical uses of @link \JFilterInput::clean() plus about 100 more variants

From my understanding this is wrong on at least 2 counts

1. @link is to display a hyperlink to a URL and it should be @see
2. JFilterInput should be InputFilter
3. when there is no use statement for this then the fqn must be used or it simply doesnt work which as we now remove unuse use statements might have increased.
4. afaict @see only works when it is on a new line

There is no point in having docs if they are not correct so I propose that these @link are updated as above and while it might not always be necessary to use the fqn it would make it more consistent

So this would make

     * @param   array    $urlparams  An array of safe url parameters and their variable types, for valid values see {@link \JFilterInput::clean()}.

     * @param   array    $urlparams  An array of safe url parameters and their variable types, for valid values
     * @see \Joomla\CMS\Filter\InputFilter::clean()