Is the USB-C cable included with the Power Adapter rated for 3 A at 20 V (60 W) or 5 A at 20 V (100 W)? The USB-C standard also has numerous other options in cables like data rates and whatnot, that I can’t think of from the top of my head.
I wasn’t able to find these specifications anywhere, and I’m really curious.
Note the “PD Controller Cypress CCG5” on both sides of the laptop interfaces with the CPU by I2C and USB 2.0 and to the port by USB 2.0.
Plus USB-PD negotiation doesn’t involve much data, so there’s no need for speeds faster than USB 2.0.
Edit: but of course we’re talking about the cable, not the laptop. However I confirmed the cable only passes data at USB 2.0 speeds: an M.2 PCIe 3.0 NVMe SSD in an enclosure that normally reads at 988.9 MB/s (7.9 Gbps) only reads at about 42.4 MB/s (339.2 Mbps - USB 2.0 speeds).
100 W USB-C cables are electronically marked using a chip, I believe chargers will not supply more than 60 W (which is the minimum every USB-C cable should be able to provide) unless they detect that the cable is rated for it. So it should be a binary yes or no for that part. Unfortunately this spec is often only listed on the cable packaging and not the cable itself, so there’s no way to know for sure just by looking at the cable as far as I am aware.