My Pixel 10 Pro XL is allegedly capable of fast charging at up to 45W. Great, I have a 65W charger, let's give it a go - it tops out at 22.5W no matter what. Alright, I'll try my 30W charger - only 15W now. How about the 20W one, will that work? Nope, still only 15W.

I do some searching and found out that the Pixel needs a charger that supports PPS rather than just PD to achieve higher charging speeds. So I find a 45W charger that supports PPS. Finally, let's give it a go! ... 24-25W maximum. Turns out that yes, it does support PPS, but not up to 21V which the Pixel needs to charge at 37-38W (and it won't go up to 45W despite Google's claim that it's capable of that).

All that said, that has nothing to do with the connector cable. It's just that USB charging standards are a mess.