I don't see any cookies saved anywhere. I do see four variables in localStorage, though.

They also embed Youtube if you open the demo, which in turn tracks users (yes, even through the no-cookie subdomain: https://dustinwhisman.com/writing/youtube-nocookie-com-will-...).

Ursula von der Leyen would not be very proud.

Let's see if one of these shady lawyers who make their money by finding these violations reads HN and gets into contact with them...