There's something strangely ominous about a lengthy, full screen German-language popup.
The page has 15+ trackers on it, so it must definitely ask for consent, and it shows as a big dialog with 3 buttons at the bottom.
It may be a regulatory requirement to display the info. It's my opinion doing it in such a disruptive and unintuitive manner is a good way to increase the bounce rate on a given site, especially when I've already got multiple browser settings enabled indicating my preference.