Huh, that might get me to try mastodon again. The browser experience used to be crap.

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.

The “multireddit” feature has been on the request list on github for quite a while, but yeah the “browse as local” feature is live and mostly working on the internal test release. Some small things are being ironed out and then it should be released to the public soon, I’d say it’s 99% there.

High tech from the 90’s :-D