A very detailed article about the whole Meta (Instagram/Threads) vs. Fediverse discussions. It's a long read, but well-worth it if you're interested in the subject.
I don't use any Facebook products for a reason, and I would not want to have to move to a different instance if the one I chose would federate with Meta. And the same goes for other data-hoarding companies out there, in case they try to enter this space.