> They do not want you plugging in an arbitrary charger (which may not have the right wattage)

Why not? The standard deals with such a situation fine… There is zero danger, the PD contract wouldn’t be able to negotiate, so the system could just indicate with an LED or a message on the screen or something to show it’s not going to be able to start charging without a bigger charger. This is literally a solved problem.

Aren't these issues that Nintendo has to solve to maintain compliance with modern compatibility laws, rather than roadblocks for them to use to inhibit consumer ease-of-use? If the wattage is wrong then the Switch 2 can say that and either slow charge or not charge at all. The other issues are all purely user preference.