RX 6700 XT black screen and graphics card disabled

Have a nice day everyone!

1. Please tell us your current hardware:
(Please actually list here And don’t refer to the signature, because some don’t see it and the hardware changes)

Processor (CPU): AMD Ryzen 9 5900X
Memory (RAM): 32GB DDR4-3200 Reppos V
Motherboard: MSI MPG X570 Gaming Plus
PSU: 750W Quiet Direct Power 11, 80+ gold
Graphics Card: Sapphire Radeon RX 6700 XT

2. Describe your problem. The more precise and better you describe your problem, the better we can help you (eg additional pictures may be helpful):

Recently I have had this problem repeatedly during games that my desktop just freezes for a while and goes black shortly after while the audio sometimes partially (looped) and sometimes completely Kind of goes on normally. I have to restart the PC every time, and the graphics card is always disabled in Device Manager.

The problem happens very inconsistently, so I can’t easily replicate it. GPU, CPU temperature and CPU usage are in the normal range.

This seems to happen quite often in WoW, a few times in FFXIV. However, both that and other titles such as The Witcher 3 and Total Warhammer 2 can also last for a long time without any problems.

In one case I had a blue screen (memory management).

In normal operation, i.e. while browsing, watching YT or streams or working with Word/Excel etc., this never happened.

3. What steps have you already taken/tried to resolve this issue and what did it do?

GraKa and PSU cables checked
I ran DDU in safe mode with the default settings (except the option to delete the drivers folder as this is not specifically recommended) and rebooted the PC and installed drivers.
The GPU driver is up to date (22.7.1 optional) and so is UEFI.
Power Plan – Advanced Settings – PCI Express is set from “Medium” to “Off”.
The 3DMark Demo Nitrade, Firestrike and Time Spy benchmarks can all pass. Scores are in the average range.
Windows PowerShell “sfc /scannow” executed as specified in the “AMD First Aid Kit” thread. “Corrupted files were found and fixed”. But the problem remains as it is.
Windows Memory Diagnostic mdsched.exe -> No errors found, RAM is fully detected.
Windows dxdiag -> no errors found
MSI Afterburner: Core clock (Mhz) reduced from 2644 (default setting) to 2500. Normally I only use programs to monitor temp and prefer not to overclock.