Logout (may have to remove account) and you will be able to login as guest again. Or join an instance not defederated from beehaw.org. Suggestions: lemmy.ee, vlemmy.net, reddthat.com, etc. Then you can access those communities and actually participate in them if you wish to do so.

I noticed the same thing, and ended up adding a second shortcut to wefwef on my Home Screen, so now I’ve got one called Lemmy (logged in) and one called wefwef (for guest browsing). I’ve discovered that I have to update each independently, but apart from that it’s working so far.