What style of multifamily are you referring to here? Every townhome and apartment style I’ve ever lived in has discrete electrical, plumbing, and HVAC.

I’ve only rarely seen condo styles with shared systems and those typically come with unappealing expensive management fees, insurance, and shared expense to the tune 500+ per month on top of the price for the unit itself. My father used to mantain the infrastructure for such a development and those were prices circa 2000 or so.