The Nintendo Switch actually uses USB-C power delivery, and from everything I can tell, the link between the power supply and the official Nintendo dock is compliant. Using third party docks, or trying to power the switch from the bottom connector does seem to be a little dicier.
The issues people have had with it seem to be that the Switch dock requests exactly 15V from the power supply when plugged into a TV, and many USB-C power supplies don't support this voltage. The MacBook pro charger supports 9 and 20V (I think), and most others use 9, 12, or 20.
The problem is that there's no indication of what failed unless you're sniffing the power delivery handshake.
The issues people have had with it seem to be that the Switch dock requests exactly 15V from the power supply when plugged into a TV, and many USB-C power supplies don't support this voltage. The MacBook pro charger supports 9 and 20V (I think), and most others use 9, 12, or 20.
The problem is that there's no indication of what failed unless you're sniffing the power delivery handshake.