

Yes, you can browse any instance and then from there also all local communities.
https://imgur.com/a/5J6gDGg I selected one at random I didn’t know exist from a long list (no idea how sorting works though) and then displayed a list of communities in the second screenshot. You can see on the text in the background that it shows the instance as “a remote instance”, i.e. not the one where you are registered.
And in the next corporate social responsibility report: