No. You can emulate the network matters in software. For more details, go look up the Linux USB Gadget framework. You can even play around with some of it your

No. You can emulate the network matters in software. For more details, go look up the Linux USB Gadget framework. You can even play around with some of it yourself using a Pi Zero 2 W (I did, making it appear to be a USB webcam - I saw guides on how to make it be a serial port and even an ethernet adapter too)