Its support is mentioned in new AMD graphics drivers for Linux
If Nvidia got rid of the USB-C (VirtualLink) port in its GeForce RTX 30 graphics cards, then AMD, judging by the latest data, is going the opposite way. The source writes that the new version of AMD graphics drivers for Linux mentions the USB-C interface. In the same version of the driver, the video card appears under the code designation Sienna Cichlid – it is attributed to one of the models with GPU Navi 21 (Big Navi).
The VirtualLink interface in Nvidia RTX 20 graphics cards is designed to connect to virtual reality headsets. However, due to the fact that they did not receive a proper distribution, such a port disappeared. At the same time, USB-C video cards can be used for other purposes. For example, connect peripherals or monitors. It’s comfortable. And AMD’s Radeon RX 6000 will probably provide that convenience.