I had contempt of USB C (do we need to print books that can be opened from either end) and was amazed the thin steel panel and plastic connectors dont mind a whopping 24W.
USB-C can handle 24W on a normal thin cable because the voltage can be ramped up to provide more power at a safe current level. It's high current that makes connectors and cables heat up and creates risks, not high power overall.
Supporting that higher voltage requires hardware support on both ends and also active negotiation on both ends so the devices can agree what voltage to use. (Without that it falls back to the old USB default 5V and a much lower max power)