To clarify - a lot of advertisers have gone to the trouble of writing one stack that's GDPR compliant and an entirely different stack that's not GDPR compliant

To clarify - a lot of advertisers have gone to the trouble of writing one stack that's GDPR compliant and an entirely different stack that's not GDPR compliant - if you're outside the EU you're not going to get the one that complies with GDPR. In the past with privacy situations like these we'll usually see one large market (CA, EU, NA) adopt more restrictive rules and the rest of the world sort of get a free ride because it's not worth the cost to build an entirely separate product for the unrestricted markets - with advertising this has not happened... if you're not in the EU you're not getting any of those benefits.