Some more geographic data from SimilarWeb, this showing the top 5 countries from which OGS traffic comes during August 2021:
Somewhat in agreement with the 2021 flag data in that US, France and Thailand are big hitters. But flags have GB top but they’re not in the top 5 for traffic. Also Malaysia, China and Russia are above Germany and Taiwan in flags but not traffic. Strange given UN and pirate are not on flag list. Probably down to the way traffic is measured by SimilarWeb (I don’t know how they do it) and that flag does not necessarily mean you are accessing from the country, e.g. maybe a lots of Brits living abroad 