Would it be possible to add a usb RNDIS device, So we can do networking over USB?
ie. run a udp server etc, Currently cores/arduino/stm32/usb/ contains only CDC and HID,

Windows 10 should support rndis without drivers needed for
USB_DESC_TYPE_DEVICE, /* bDescriptorType/
0x00, / bcdUSB/
0x02,
0xEF, / bDeviceClass/
0x04, / bDeviceSubClass/
0x01, / bDeviceProtocol */

https://github.com/fetisov/lrndis andhttps://github.com/Lexatagan/LRNDIS
are 2 examples only not based on stm32duino core.

Modifying these device descriptors was one thing,
Only implementing the endpoints for this is unfortunately above my knowledge.

Any help, links or useful info is welcome