Yes,
The way I would do this is first add a filter for ACF, in that filter I would add the filter than modifies the query, then after modifying the query I would remove the filter something like this.
add_filter('acf/fields/post_object/query/name=your-field-name', 'modify_my_field_name_query', 10, 3);
function modify_my_field_name_query($args, $field, $post_id) {
//using the example from the original link I posted
add_filter('posts_search', '__search_by_title_only', 500, 2);
return $args
}
function __search_by_title_only($search, $wp_query) {
remove_filter('posts_search', '__search_by_title_only', 500, 2);
/// modify the query as shown in the other post
return $search
}
