Here are more info: https://www.nyc.gov/html/dot/html/pr2024/e-cargo-bike-on-city-streets.shtml
There seems to be some good, some bad.
I'm really interested in this part: "The rules also establish new curb regulations — a "Commercial Bicycle Loading Only" zone — to allow dedicated space at the curb for cargo bikes to load and unload goods." That's a brand new idea to me, and I really like it!