How to add a filter to a search page?

Question

CMS

The standard filter module is added to the category page, but not added to the search page.

Answer 1

In principle, this cannot be done for the default filter, since it works as a filter in the content of categories, and not in a certain selection obtained after searching for a keyword (phrase). Even if you stick it with your hands into the search template, it will still "shovel" in the content of the categories, and not in the selection itself. This requires other filters.