Lemmy.ml, the most popular instance fo Lemmy out there, is not accessible in my country unless I use a VPN. But, I can subscribe to any community that exists on lemmy.ml from here and even post on those communities from this account.
I love this aspect of Lemmy.
In contrast, in China you just get the browser’s default error page like you typed in a url wrong to a page that doesn’t exist, in essence they give you no error or indication info at all, just blank.