This tutorial features the Feast Plugin, which contains theme enhancements.
The Modern Menu integrates a "Subscribe" button that provides a call-to-action for readers to sign up for your newsletter the entire time they're on your site.
This allows you to:
- improve accessibility by removing forms that lack proper headings and form labels
- improve CLS by preventing forms from forcing the browser to re-render the page when it loads
- improve user experience by removing annoying pop overs
- provide a better user experience, giving them a subscribe button when they want to subscribe, not at an intrusive point in your content
See the rethinking the newsletter post for further details.