Change Order of Admin Posts Depending on Meta

Post list in admin (edit.php) use a normal WP_Query, just like frontend can be changed using pre_get_posts.

add_action('pre_get_posts', 'reorder_my_cpt');
    
function reorder_my_cpt( $q ) {
  if ( !is_admin() || !$q->is_main_query() ) {
    return;
  }
  $s = get_current_screen();
  // change 'book' with your real CPT name
  if ( $s->base === 'edit' && $s->post_type === 'book' ) {
    $q->set('orderby', 'menu_order');
    $q->set('order', 'ASC');
  }
}