his page template displays only the content with header and footer, wrapped in a container without a title or featured image.

Best choice if you want to build landing pages with a page builder like Site Origin. With a page builder you can stretch sections across the entire width of the screen and display their contents again in the container.

If you prefer to write content in html, you can also stretch the content with the width-100 class in your div across the entire width of the screen.

<div class="width-100 bg-danger text-white py-5">
  <div class="container">
    Your content
  </div>
</div>