Could you elaborate? Because I’m like… 90% you’re wrong. Oc is correct. The “c” in type c referred to the connector. Just like micro-b mini-b usb A,etc. USB 3 is the speed standard. As well as 3.1 (or 3.2 gen 1 it’s called now or some other silliness), 3.2 gen 2, etc.

There are usb C cables that can do video, audio, some that have thunderbolt speeds. There are also usb c cables that only support usb 2.0. So if you can elaborate on why you believe otherwise, id appreciate it. the usb consortium has ridiculous conventions and I’m no hardware specialist. My knowledge on these is from USB consortiums training when I was a salesman.