I went to the office today. PATH was busy in the morning and at lunch, about 60 to 70% of the pre-pandemic crowds, but it fell off a cliff and was empty in the late afternoon. Some food court shops are still closing down shortly after 2:00 p.m. where before they would stay open until 4 or 5:00 p.m. to get the late lunchers and people picking up something on the way to take home. It looks many people who go in to the office are leaving for the day early to "log in and finish work when I get home". Several people where I work are doing this, including me today when I saw others do it. I use the 504 to go to and from the office and noticed the afternoon rush is more staggered, starting earlier, but then less crowded overall, maybe only 50% of normal. Morning rush on the 504 on the other hand appears back to about 80% of normal. So obviously there's a discrepancy there with 80% a.m. and 50% p.m. so the staggering of departures out from downtown from 2 to 6:00 p.m. is the only way I can think to explain it.
I'm not sure if that carries to GO because there isn't the continuous choice of departure time early afternoon. It also might be a thing where people who live downtown are trusted to be able to get home quickly, say in less than 30 minutes, and so are allowed to do that (which I imagine would certainly wrankle the long distance commuters and create some office political storms).