@Gargron

When someone sends me a post link from another instance, I get a message telling me to use my instance details to login to the other instance so I can see the post, & this rarely works without logging me out of my instance & throwing up errors.

Is this what's supposed to happen in the Mastodon Fediverse, or am I missing something?

I ask because I'm struggling to see how you can connect with Thread accounts on Mastodon (or vice versa), if you don't have a presence on both?