Sorry for the delay.
Unfortunately there’s no easy way to disable specific elements, but you can try excluding these sample listings from category/search pages (replace 1,2,3 with sample listing IDs):
add_action(
'pre_get_posts',
function( $query ) {
if ( is_admin() || ( ! $query->is_main_query() && ! $query->get( 'hp_main' ) ) ) {
return;
}
$query->set( 'post__not_in', [ 1, 2, 3 ] );
},
1000
);
Hope this helps