Prefill a Form in another page

You could use a Form to let user set some initial filter and then see result in a different page with a more complete form (or the same).

Simply use the Redirect Action passing all parameters via URL plus the Elementor Element ID of the main form in result page, for example:
https://demo.e-addons.com/demo/simple-posts-search/?form_id=9d1d614&cat=[field id=”cat”]

A more simple solution is a Button widget as Link the URL which contain all Form filters parameter and the main Form Elementor Element ID, for example:
https://demo.e-addons.com/demo/simple-posts-search/?form_id=9d1d614&queried_id=554&cat=51