The second sounds like hub-and-spoke, where you have pods of 2-4 people clustered around common area. (I enjoy that as well.) Open concept is usually more like

The second sounds like hub-and-spoke, where you have pods of 2-4 people clustered around common area. (I enjoy that as well.) Open concept is usually more like 20-40 in a giant pen without any sort of separation or soundproofing between. Studies suggest hub-and-spoke is good; open concept is high density feedlots applied to white collar work.