interesting thing of note: if you're looking to buy a GaN USB-C charger above 75W, compare the price-per-watt to a few 65W ones.

chargers above 75W are required to have an active PFC stage, typically requiring four more transistors and a fancier controller, which adds cost, so you can often tell if they're penny-pinching on the design if the price-per-watt is close to that of a 65W one. you should expect to see at least a 20% price-per-watt jump if they're doing it right.