I don’t get what the problem is? Anyone can elaborate.
Edit: Thank you all for shedding more light on this topic. I’ve never really used flatpak but I do understand it better now!
Beehaw is meant to be a safe space, mitigating toxicity, while other instances, by having registration open to all without moderation, causes that.
By being federated, they can interact with one another. Beehaw defederated them in order to avoid that. The main argument being that the modding tools right now aren’t good enough to help them do it any other way.
The short version is that beehaw was struggling with the (currently) limited toolset available to moderate user content, and they saw a heap of users posting things they don’t allow on their instance were coming from the two other big instances, so it was more effective for them to defederate to try and stem the tide.
I imagine regeneration will occur in future when the lemmyverse stabilises a little, and when better mod tools are available