Analysis of information sources in references of the Wikipedia article "AC adapter" in English language version.
What held back the use of GaN in cheap, disposable consumer goods — and yes, to the global giants that make things like phone chargers they are just cheap and disposable — was the cost. [...]
Huawei SuperCharge uses a proprietary charge pump system to split high-voltage inputs (e.g., 10V/4A) into lower-voltage, higher-current outputs. This minimizes energy loss as heat while enabling faster electron transfer.
Both Dash Charge and Quick Charge carry up to 15-20-ish watts of power, so why does the latter need a special cable? Well, it is because in an electric circuit, greater current requires thicker wires. Greater voltage – not as much. This is why Qualcomm Quick Charge will work with an ordinary USB cable, while Dash Charge requires the thicker cable bundled with the OnePlus 3.
