That’s a standard counter that gets rolled out as if the manufacturers leading the way don’t test their devices. To hell with safety and science just crank up the volume.
These phones with 100W have been specifically designed with battery longevity and safety.
They use tech like dual-cell to achieve it so it’s not just a single channel.
Worth looking at PPS and Quick Charge 4+/5 vs Power Delivery 3 standards.
The batteries have been stress tested to achieve the same performance over the lifetime of the device so there’s no or to save by charging those devices slower than intended.
It’s the same argument on EVs where cars like the ionic 5 can rapid charge at 220kW and it has a 800 volt system to deal with it (over the usual 400). It’s been designed to be fast charged without impacting on battery life.
Google/Apple/Samsung/Motorola/Sony/Nokia will get there with actual fast charging, but just at a slower pace.