PD 3.1 can charge at 140W, which is what you need to fast-charge a 16-inch MacBook Pro. Note that the Thunderbolt/USB-C ports are all rated at PD 3.0—only the MagSafe port is PD 3.1 so you must ...
If you're opting for the more up-to-date designs of the 2023 MacBook Pro 14-inch then you'll also get a 67W charger in the box, while the 16-inch model comes with the top-end 140W charger as standard.