Hi there,
You can use a block element – content template and assign it to the search result page.
And use this PHP snippet to turn off the columns on search result page:
add_filter( 'option_generate_blog_settings', 'lh_custom_search_results_page_settings' );
function lh_custom_search_results_page_settings( $options ) {
if ( is_search() ) {
$options['column_layout'] = false;
}
return $options;
}
Adding PHP: https://docs.generatepress.com/article/adding-php/