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.
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.
Phone comparison landing pages:
https://www.apple.com/iphone-15-pro/
https://www.samsung.com/us/smartphones/galaxy-z-flip6/
https://store.google.com/category/phones?pli=1&hl=en-US