You'll have to excuse me if I type something that's already been said, it's late and I'm quite tired.
Starfield's online discourse cements one thing imo: People don't understand programming, at all.
It being 30 FPS isn't due to it "super ambitious mega giga world with thousands of things to keep track of", it's due to Bethesda hacking together many systems to a OLD ass engine.
Object permanence isn't this monster of a task that needs to take an increasingly amount of overhead, neither is the entire universe being accessible, you just load the world spaces between transitions. The game doesn't need to calculate everything, everywhere at every single second, people are just setting themselves up for disappointment believing Todd's lies once more. (He can lie to me any time though, I don't believe him but god I like hearing him talk)