Mini-plugin to workaround potential duplicate document title issues

web-stories-disable-title-tag.php

<?php
/**
 * Plugin Name: Web Stories Disable title tag
 * Description: If for some reason you're seeing duplicate `<title>` tags for stories.
 * Plugin URI: https://wp.stories.google/
 * Author: Pascal Birchler, Google
 * Author URI: https://opensource.google.com/
 * Version: 0.0.1
 * License: Apache License 2.0
 * License URI: https://www.apache.org/licenses/LICENSE-2.0
 */

add_filter( 'web_stories_enable_document_title', '__return_false' );