[How to] Hide “Uncategorized” Category on WordPress // WP Assist — Read on www.google.com/amp/s/wpassist.me/remove-unwanted-uncategorized-links-from-your-posts/amp/ Edit functions.php: function remove_uncategorized_links( $categories ){

 foreach ( $categories as $cat_key => $category ){
 if( 1 == $category->term_id ){
 unset( $categories[ $cat_key ] );
 }
 }

 return $categories;
 
} add_filter(‘get_the_categories’, ‘remove_uncategorized_links’, 1);