That’s correct, it’s completely blank like a painter’s canvas for you to add whatever you want, and only what you want.
For example, a YouTube video, some text, a “Call to Action” button. You’ll find that the WP editor lets you add all sorts of content. You can also utilize some of the built-in shortcodes:
https://startupwp.com/demo/shortcodes/
The sky is the limit. What specifically did you have in mind?