Remove “Category:”, “Tag:”, “Author:” from the_archive_title

add_filter( 'get_the_archive_title', function ($title) {

   if (is_category()  ||  is_tax() ) {

      $title = single_cat_title( ' ', false );
   }elseif ( is_archive() ) {

      $title = single_month_title( ' ', false );
   } elseif ( is_tag() ) {

      $title = single_tag_title( ' ', false );
   } elseif ( is_author() ) {

      $title = '<span class="vcard">' . get_the_author() . '</span>' ;
   }

   return $title;
});