I don't think there are power supplies in an iphone that need to output 120W.

It's the temperature that matters here, not the wattage.

	▲	jeffbee 4 days ago \| parent [-]
		The one tends to cause the other. There aren't any FETs anywhere in an iPhone that are passing 100A continuously. In any case, it's designed for that situation, whereas the Framework Desktop is designed under the presumption of the presence of a fan.