I don't think it's protection because my USB-C powerbank won't even work. I think it's similar to this:
https://www.theverge.com/2019/7/10/20688655/raspberry-pi-4-usb-c-port-bug-e-marked-cables-audio-accessory-charging
Or perhaps they did not put resistors there at all... I'll measure using my...
I got my Air MAX vape a few days ago, has anyone else noticed that the USB-C port does not work with USB-C to USB-C cables (eg from a charger brick that can do fast charging or from a laptop) but only works with dumb charging bricks and/or USB-A to USB-C cables?