I don't care whether it's native or natural browser behaviour, I just don't see what problem it solves and I find it irritating.

I understand scroll snapping for a gallery, but this is text, and there's nothing more natural and ingrained then scrolling through text, so I don't think the default behaviour should be changed here.

Why shouldn't this be one long page that you can scroll through normally?

Not sure why I can't reply to @amadeuspagel below. The reason is dogfooding. The homepage uses one of the components (viewport carousel) and every section must be viewport to demonstrate its features. Now I understand that's irritating and will change it. Thanks!