I'd argue while the UX is questionable (panning the page right to left while the user scroll down), the website loads pretty fast, which is a good thing, and the scrolling is smooth. The page also weights less than 14 MB.
Here is an example of horrible UX plus horrible loading time plus janky scrolling brought you by Google. 60 seconds after the page was open the content of the top of the page was still not done loading (72MB before I closed the page).
https://store.google.com/us/product/pixel_3
I think it's hardly just a matter of design here.