The other question is, will you be able to follow a Twitter user from Facebook, and send them a DM? I think the answer is "No", because that counts as social m

The other question is, will you be able to follow a Twitter user from Facebook, and send them a DM? I think the answer is "No", because that counts as social media interoperability rather than messenger interoperability, but I don't understand how Facebook have managed to convince the EU to exempt them from this.