They use their product landing pages as a commercial but you can see they make that top nav easy to get to buying it or tech specs.
Personally, I dislike scrolljacking but the other animated elements that come up in the viewport are pretty well-done. It's all ultra-sanitized and corporate but there's a lot of effort and finesse put into it.
The iPhone 15 Pro page is a good example, as soon as you click “Buy” or any other link on the top nav, the pages become much more conventional while still retaining a consistent and functional style. The dynamic scroll hacking stuff is only on the main marketing pages.