What is the B5 pin for USB-C cable? Something wrong with Wikipedia?
There is no confusion, it's both depending on how the cable/receptacle is used.
See Microchip USB-C AppNote:

And further on in the document:

The cable can also be reconfigured to be things like DisplayPort in &quot;Alternate Mode&quot;, which turns the CC1/CC2 pins into &quot;VCONN&quot; pins.