Oculus Quest 2, Link, AMD Radeon and crash = black Room with large Window
for Christmas, I've bought a Quest 2 and have it connected with a fasgear USB C cable. Installation via Oculus App on my PC (AMD Ryzen 5 3600X, 16GB RAM and NITRO+ RX 5700XT - definitely VR ready) went fine.
When activating Link I successfully switch from the Q2 Room into the Rift Store. I see my Apps and everything. After a while (smth between seconds and minutes) my controllers getting disconnected. I'm standing in a dark room with my guardian border visible and a big window into the last thing I did on the screen. The borders of the window are flickering a little bit.
Since the cable is working (bandwidth check from oculus app was green) I assume it must be related to my graphic card. What I tried so far is installing 20.11, 20.10 and the latest driver 20.12.1. Since my card is a navi I thought I would not be affected.