It's an interesting fact. I have been surprised at how often The Guardian sneaks in to stuff that is otherwise overwhelmingly North American sources only. The Legal Eagle channel on YouTube has cited The Guardian a few times that I have seen, for example. And they even present it seemingly on the assumption that they don't have to explain to their viewership what The Guardian is. They just slap it on screen the same as they do the Washington Post or Politico or some such.
Don't know if it's just my settings (spoiler: I read the Guardian) or it's by tracking IP addresses, but at least for me, when I go to the Guardian, it defaults me to a US-specific home page. I assume British people see a different page, with more coverage of their government.