没有太多的方式来设计wp_list_author 但您可以使用style => \'list\' 用于显示作者的参数<li> 然后设计您的<ul>根据需要。https://developer.wordpress.org/reference/functions/wp_list_authors/

    <div class="container">
<div class="row">
<div class="col-lg-4">
    <ul class="d-flex">
<?php 

wp_list_authors( array(
    \'exclude\' => 4,
    \'show_fullname\' => 1,
    \'optioncount\'   => 1,
    \'orderby\'       => \'post_count\',
    \'order\'         => \'DESC\',
    \'number\'        => 60,
    \'style\'         => \'list\',
) ); ?>

    </ul>
</div>
</div>
</div>  

您也可以使用get_users作用

https://developer.wordpress.org/reference/functions/get_users/

<?php 
$users    = get_users(\'\');
$query    = get_users( [ \'role__in\' => [ \'author\', \'editor\' ],
                        \'number\'=> 60,
    \'exclude\' => 4,
    \'orderby\'       => \'post_count\',
    \'order\'         => \'DESC\', ]);

?>
 <div class="container">
<div class="row">
    <?php
foreach($query as $q) { ?>


<div class="col-lg-4">
          <?php echo get_the_author_meta(\'display_name\', $q->ID);?>
</div>

<?php } ?>
</div>
</div>