One of the odd requirements of servicing the new multi family sites is the size of the incoming service. I have always found it ridiculously overcapacity. Generally the requirement is a 2 inch water line. These are so stiff, and awful to deal with where they enter the basement slab. I have had to assist the plumber fighting these 2 inch pipes many times. It doesnt help that it is super cold and rigid, in an awkward location and needs 200 ft pounds of torque to thread the brass fittings on so it won't pop off and cause a major inundation.
The massive pex pipe is immediately throttled back to a usable diameter. Right now this is feeding a single connected hose bib.