Earlier quoted context omitted.
The trouble is that popups like this don’t even comply with the relevant legislation. (Which is the ePrivacy Directive after the 2009 amendment, though people largely ignored this part of it until the advent of the GDPR which came into force in 2018. Simplified, ePD says “most cookies must be opt-in”.) If anything, putting such wildly non-compliant popups should make you more liable to punishment, because it undermin…
If these silly laws were enforced, you'd have to shut down the whole Internet anyway.
No, the tracking across sites will stop. None of those "silly" laws prohibit the use of e.g. session cookies.