And the author wrongly said

PD will not negotiate down to 1W power levels

The correct way ro ask for 0.8 W (5 V, 0.16 A) is to request 5 volts, any current. Doesn’t matter if the charger is capable of 500 mA (legacy USB), 1 A or 3.1 A. The PD standard can accomodate the watch, it’s just that the watch lacks active electronics that are required to talk to the charger (and even the supplied C-C cable is non-compliant by being power-only).

Edit: apparently PD allows 0.1A steps between 0.1 A and 3 A for 5 volts so it’s technically possible for a PD charger to deny power to the watch if it’s VERY underpowered and can’t even put out 1 W. Still, it’s the watch’s fault for lacking correct PD implementation.

Both young people in the metaverse?