We spent a week in Manhattan last month and for us it was an incredible pleasure to be able to enjoy leisurely restaurant meals, bars, and attractions without worry. We live in a state where cities are actually penalized for mask mandates by withholding state funding, there is a law against vaccine discrimination so employers can't require vaccination (or even ask for status), and the vaccination rate is very low. Even before our COVID cases per capita took us to #1 in the country, we stopped "dining in" (after a brief respite May-Aug) and although we do takeout, it isn't quite the same. Restaurants and bars are way understaffed (partly because they can't guarantee the safety of their staff).
Every single indoor attraction/restaurant/bar we went to in Manhattan required (and checked) vaccination status (but not always matching ID), and masking was enforced at attractions. Even the bagel/coffee shops required masks inside, and they checked vaccination status if you were dining in (but not for takeout). Bus/Subway riders were pretty compliant. We saw a few people who had their mask below the chin, but usually for just a brief period, and then they pulled it up.
I think we benefited from lack of international visitors and those who won't visit because of the COVID restrictions. We certainly got a lower airfare and hotel rate than we would usually see. I suspect more people continuing to work remotely also contributes to the lessening of crowds in Manhattan. I certainly hope for the sake of local businesses that things resume to something closer to normal soon.
We had a wonderful visit to NYC, and my spouse, who had never been there before, wants to return.