> The port is either marked (everything but MacBooks) or doesn't matter (MacBooks, pretty sweet).
From https://apple.stackexchange.com/questions/363337/how-to-find...:
> TLDR; If your MacBook Pro runs hot or shows a high % CPU for the kernel task, try charging on the right and not on the left.
IMO if it's to be optional to implement the 'receive' side of USB-PD (or QC? Whatever it is) then it should use an extra pin, so a PD cable physically can't fit in a non-PD port. And the ends opposite, so that the PD-pin-having transformer plug won't fit a non-PD cable.
(I don't really want that though, I'd rather it was just required to support it. So it's all the same and we can properly live the one-connector dream.)