Some more details on how Instagram is planning to build an ActivityPub compatible service... https://www.theverge.com/2023/5/19/23730070/instagram-twitter-app-competitor-leak
This is Instagram’s new Twitter competitor

A leaked marketing slide from Lia Haberman gives us our first look at Instagram’s upcoming “text-based” app that’s supposed to take on Twitter.

The Verge

@mmasnick This is one of those moments, where creators of #ActivityPub would've wished they made portability a feature.

Meta has no reason whatsoever to make their accounts movable to another server. It's completely optional in ActivityPub, and server holder can decide that part.

@Ciantic

I don’t think they care.

Account portability was such an obvious feature that surely they considered but rejected it as not particularly important to what they intended to build.

ActivityPub is all about instances, not users. It’s all centered, and centralized, around instances.

Account portability just doesn’t matter to that instance-first organization.

@mmasnick