One of the most powerful features of Gutenberg is the ability to use Re-usable Blocks and create a template with it. By doing this you will save yourself loads of time when making your pages and posts.
In my video I used simple blocks that come with WordPress by default. But you can use any block type, even one is part of a Gutenberg plugin.
Each site can have as many templates as you need. One feature I neglected to show at the end was how you can export a template (as a jason file) then import that file into a different WP site. What a time saver!!