Manhattan is sort of a special case and I can tell you from personal experience that 90 minutes is pretty bad even if a lot of it is spent on a train. I commuted into Boston a few days a week when it was about 90 minutes door to door and IMO it was not sustainable. If I go into my downtown office now which I do rarely it’s 2 hours.
That some people are forced into super-commutes now and then doesn’t make it a really sustainable most days situation. So you’re up by 6am or earlier and you’re not getting home until 8pm or later depending on your work hours.
