140W charging on the 16" had me worried that Apple was using a proprietary/non-conforming extension to USB-C, just like Nintendo did for the Switch. The reports of bricked Switches from standard USB-C chargers was an unfortunate demonstration of why this is a bad idea, and why it's important that Apple is using a standard (even if it's very new) method of increasing power delivery.
I really doubt that Apple would have gone out of their way to invent their own power profiles for the 16-inch MacBook Pro if one didn't already exist.
The 16-inch MacBook Pro certainly doesn't need 140 W to run. The Intel i9 MacBook Pro comes with a "measly" 96 W charger and it tops up just fine. The 140 W is there for fast charging and if they had to stick to 100 W, they could've made a professional machine just fine. It's not like the most common complaint about the MacBooks between 2016 and 2021 was "it charges up too slow".
140W charging on the 16" had me worried that Apple was using a proprietary/non-conforming extension to USB-C, just like Nintendo did for the Switch. The reports of bricked Switches from standard USB-C chargers was an unfortunate demonstration of why this is a bad idea, and why it's important that Apple is using a standard (even if it's very new) method of increasing power delivery.