There's an article on the Pixel phones and charging rates here: https://9to5google.com/2024/08/29/go...-brick-tested/
Overall verdict: They do support some level of fast charging, but nowhere near the marketed rates.

At the same time, I'd say that's a positive thing. Realistically, even 25w is a lot of power being pumped into an ultra-thin battery. Battery technology and controller algorithms have improved, but physics doesn't change.