Disable creation of archives for tags completly

Hello,

Thank you so much for getting in touch.

At the moment, our plugin doesn’t have the ability to disable tag archives.

You may try the code below to disable the tag archives:

function disable_tag_archives() {
  unregister_taxonomy_for_object_type('post_tag', 'post');
}
add_action('init', 'disable_tag_archives');

You may refer to this guide on how to add codes to your website: https://rankmath.com/kb/wordpress-hooks-actions-filters/

If the code above doesn’t work, you may try this instead:

function disable_category_archives() {
	global $wp_query;

	if (is_tag()) {
			$wp_query->set_404();
			status_header(404);
	}
}

add_action('template_redirect', 'disable_category_archives');

Hope that helps and please do not hesitate to let us know if you need my assistance with anything else.