Why? Just why?
The USB PD spec is already fragmented enough without adding in more proprietary protocols. Is 150 W really that much of an improvement over 140 W that they had to create its own protocol just for their devices?
Yeah. This is ridiculous. As a proud owner of a Dell laptop with it's proprietary 130W charging protocol I can say - NOPE, DO NOT DO THAT, BAD PROTOCOL, BAD!!!