I installed the operating system and adrenaline software from scratch, so that there were no unnecessary questions. Why are you kidding people? RX5700 continue to appear in the black screen in games and on the desktop !!!
Have you tried 20.5.1? It's not technically WHQL but it was designed to work with Windows 10 2004.
I do know that AMD hasn't resolved the issues with hardware acceleration causing black screens. Do you have hardware acceleration enabled in any web browser such as Chrome or Edge? Also disable hardware acceleration in any game launchers such as Steam, Epic, Uplay or Discord.
Of course
no issues on any driver 20.4 ,20.5 ,updated to W10 2004 last night all good.
After Windows 10 2004 + 20.5.1 clean install, I have no blackscreens