How can I set a full width container as a vertical cover slide?

I’m trying to achieve a way of laying out my page with full width scroll container sections that lock into place as your scroll down the page, as 2 examples below:

From some research I can purchase the plug-in fullPage.js | One Page Scroll sections Site Plugin however curious to see whether there is a faster, easier and less expensive way than this, and just creating within the web flow designer?

Here is my site Read-Only: LINK
(how to share your site Read-Only link)

Any help on this please?