Hi There,
Thanks for writing in! Login to your server via FTP and navigate to this directory: wp-content\themes\x\framework\views\global\ copy the file _brand.php and paste it of your child theme’s x-child\framework\views\global\ directory. Look for the line
<?php echo ( is_front_page() ) ? '<h1 class="visually-hidden">' . $site_name . '</h1>' : ''; ?>
You can remove that line or replace the h1 with other tag.
Hope it helps, Cheers!