Modern distributed systems span sites. The same artifacts run in all the zones and regions. You may have partitioning schemes for certain datasets, but that’s g

Modern distributed systems span sites. The same artifacts run in all the zones and regions. You may have partitioning schemes for certain datasets, but that’s generally abstracted from the people and systems accessing them (aside from latency). Any extra access controls or restrictions on certain kinds of processing are going to be implemented in software at the record level, not by where the code is physically running. If we were talking about doing a fully isolated instance of Facebook for the EU that would be one thing, but messing with where records physically live is dumb showboating. As long as US users connected to US backends can interact with EU friends’ content, it’s clear that the geographical separation is providing no meaningful secrecy of EU data.