Why would it? If you can charge the phone with PD, but also with proprietary standards that offer something better it would meet the regulation. Seems like the best of both worlds.
Again, why would it be worse? There’s very real benefits to some of the proprietary standards that you can’t get from PD. Just because PD offers higher wattage doesn’t mean the overall charging is faster. If you have to generate a ton of heat to convert the incoming power to voltage that the battery can take, it will hinder how fast you can charge your phone. This is especially problematic at higher voltages.
