There's nothing different outside the phone market. Just like there are cheap universal chargers for phones, there is the same for laptops. If you buy an original charger or power brick from the manufacturer, it costs a lot no matter if it ends with USB-C or lightning plug or round plug or something else. If you buy a cheap universal thing, it's both more functional and costs substantially less.
The market solved the problem without committees, reports, meetings, panels, negotiations and whatnot. And most importantly, without arbitrary restrictions and demands to manufacturers.