This article explains how to replace the native search bar in the Kadence theme by Ben Ritner – Kadence WP.
FiboSearch plugin features built-in integration with this theme. It means you can replace the default search bars by selecting a single checkbox.
If you have activated the Kadence theme or the child theme of Kadence theme, you should see the following screen in the plugin settings:
Select the option
Replace all Kadence search bars with FiboSearch and the search bar should be replaced.