They’re supposedly in talks with activitypub, the backend of the entire fediverse. If meta can get what they want with activitypub, they’ll effectively have control over the entire fediverse. I don’t see that happening though because the fediverse was made in opposition of major social media sites. I see them trying to take control of the software like lemmy and kbin or if that fails trying to buy popular instances or just filling the fediverse with their existing users. Luckily if the first two fail the nature of the fediverse works in our favor and the instances that want to can just defederate.