Maybe it's just me, but open worlds have been quite tiring for quite a while.
Near infinite playing field is a cool concept, but the size is irrelevant if there's nothing to do in the field, what's the point? Having meaningful content evenly accross the stupendously huge field is a challenge. While I could scale a mountain for hours, it begs the question "why?".
I can already scale kilometers deep craters and equally tall mountains in Elite Dangerous, but there's just literally nothing there... well, apart from the occasional crafting material or whatever, but those aren't exclusive to those locations afaik.