I think I've seen both eg the more typical 5 pin on most Cameras MP3 players etc and then the 4 pin that comes on the Pentax Optio S4 for example.

and follow-on micro-USB (January 2007) standards responded to this demand. In both cases, GND moved from pin 4 (on standard Type-A and Type-B) to pin 5, with pin 4 now used to support optional ...

A single, non-monitored 5.1 kΩ resistor will be enough ... DisplayPort-capable USB-C muxes like HD3SS460 don’t do CC pin management and rotation detection themselves, but that is a reasonable ...