Every time I see this in the comments it's funny that they don't block me while connecting from country whose digital privacy laws are basically an even stronger version of the GDPR. Tells you about their true reasoning.
Not sure what country you live in, but my guess would be that your country hasn't made the same kind of noises about how wide-ranging GDPR enforcement actions can be.
Personally I don't know about non-EU/UK countries with GDPR-style (or stronger) laws, so if I were operating a website that needed GDPR compliance (and decided to instead block visitors from the EU/UK), I probably would have no idea about needing to do something about visitors from your country.
So I expect their "true reasoning" is just ignorance.
South Korea - I was there until very recently. Feel free to look up the privacy laws, they're basically GDPR with extra cherries on top and a chocolate flake. Never got blocked by any of the websites called out here for blocking EU IPs on GDPR grounds.