It’s more complicated from a dev standpoint.Because a bland flat open world is much better
when anything can happen at anytime it takes lots more dev and computational resources to realize a world.
A game like GOW is gated of by levels and “squeeze through here” points within the levels. No jump button, no mounts or even really quick movements that need fast asset streaming. They know exactly what you can see where and when so it’s much less complicated to make stuff look and play well.