

Usb C has pins for both 3.x/4 and separate ones for usb 2.0. Many devices just hook up the 2.0 lines and call it a day, because parts that can actually handle 3.0+ are rare and expensive.
Companies making USB capable parts typically contract out or buy the section of their chip which handles USB or other things like ethernet (Intellectual property cores or IP core) already designed as a drop in part of the semiconductor… This usually is under some form of contract / nda + they pay a big fee, so the parts are expensive and documentation can be tough to acquire without yourself signing NDA and being a company looking to use their ICs.
USB 2.0 is much simpler and cheaper to deal with and cant handle as much bandwidth, but thats typically acceptable for simple electronics.
Looks like a keygen music video