Release notes said that it was fixed:
A black screen, system crash or TDR may occur while gaming when performing task switches, enabling performance metrics overlay, or having video content/web browsers open on secondary displays on Radeon RX 5000 series graphics products system configurations.
No it wasn't. My system still crashing when I performing task switches with fullscreen game. I also see a big fps drop after enabling performance overlay. Here's an example in the video below.
A few seconds after I stopped filming I did a few more overlay switches, after that my display lost signal and my pc hung. So basically your "fixed issues" weren't actually fixed.