They would have way more pressure if they were still independant. The fact it's exclusive doesn't have much weight in comparison.I legit cant imagine the amount of stress on the people involved with Starfield. Most probably just wanted to make a cool open world sci-fi space rpg.
Now they have this immense amount of pressure on them to not simply develop a good game but to singlehandedly potentially save Xbox from having another dull year. It cant simply be another decent rpg from Bethesda, its gonna have to be genre defining and revolutionary. But this is what happens when you don't regularly produce good 1st party games.