The UK is somewhat famously no longer part of the EU (you may have heard of a thing called "Brexit" a few years back).

However the UK does have its own GDPR regulation (see: <https://www.gov.uk/data-protection>), though my understanding is that it may be less strict in requiring equivalence between "accept" and "reject" actions. (I may be wrong on this.)

UK sites accessed from the EU would have to be under EU GDPR compliance.