No, they made it up. There’s nothing special about the USB C port on any Apple products.

Nope

Not sure about USBC, but it was in their lightning cables.

It’s not farfetched that they would also add it to their “certified USBC”.

https://www.cultofmac.com/news/the-security-chip-inside-apples-lightning-cable-isnt-even-as-sophisticated-as-those-found-inside-printer-cartridges

Edit: apple isn’t hiding this program, either. Nor should they. It has merit. But it can be abused, as it was with certified lighting cables.