[whoknowswhat11]

Again, this illustrates are badly understood and hard GDPR is.

Browser preferences are opt-out currently. ie, users has to go set some flag. The GDPR requires informed affirmative consent.

"Consent must be freely given, specific, informed and unambiguous."

So having a website that track you unless you set some browser flag is not enough. Many folks say that you need specific consent to track. That is why there are so many pop-ups on EU websites.