I have a Lenovo X1 that's a few years old, it charges via USB-PD and came with such a charger. My SO has an even older Lenovo, one of those that can be turned into a tablet form factor, and while it came with a proprietary charger and plug, it does accept USB-PD.
I'd be pretty surprised if they went backwards into the future on this one.
I'd be pretty surprised if they went backwards into the future on this one.