We have the public properties: WP_Query->found_posts WP_Comment_Query->found_comments WP_Network_Query->found_networks WP_Site_Query->found_sites but then comes this private property (that's also made public via magic getter): WP_User_Query::$total_users so the confusion is natural :-) Look into the public `get_total()` method that and the `count_total` bool attribute in the [docs][1]. [1]: https://developer.wordpress.org/reference/classes/wp_user_query/#total-count-parameter