The creative freedom part definitely seems true, but according to this Glassdoor review, Arkane Austin experiences crunch:I don't know anyone who works at Bethesda but they seem to get a lot of creative freedom and I haven't seen any reports about massive crunching or anything like that.
"Very rough crunch time, spent many nights working into early morning at the end of projects with no compensation for this. Don't expect a large (if any) bonus."
One review is hardly definitive evidence though.