GPU Error at Denoise AI with AMD Radeon Graphics

AI Denoise does not work on my fairly new ASUS Zenbook Pro 17. The best results are images that are interfered by small colored squares randomly placed in the dng. (I enclose an example image.) But most of the time AI denoising stops processing, giving out an "unknown error", followed by the "GPU Error" ("The graphics processor has encountered an unrecoverable error. ...")

I tried to deactivate GPU support by default, but then AI denoise does not work at all.

When I activate GPU support by default, it crashes all time.

When I set it to Auto, it crashes most time, but sometimes it works - but with the small color patterns in the dng-results.

I also changed the settings of the AMD radeon to "Gaming performance" (= full power) after updating the driver.

Any ideas what else could solve the problem?

Or is the up-to-date AMD Radeon Graphics just to weak for the new denoise feature? That would be upsetting, because the Laptop is only 4 months old and i bought it especially for picture editing.

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Here are some system infos: (The CPU is an AMD Ryzen 7 6800H with Radeon Graphics (3.2 GHz)

Lightroom Classic version: 12.3
License: Creative Cloud
Operating system: Windows 10 - Home Premium Edition [that is false information, it is Windows 11 running on my system!!]
Version: 10.0.22621
Application architecture: x64
System architecture: x64
Logical processor count: 16
Processor speed: 3,1GHz
SqLite Version: 3.36.0
CPU Utilisation: 0,0%
Built-in memory: 14079,1 MB
Dedicated GPU memory used by Lightroom: 2733,7MB / 2021,7MB (135%)
Real memory available to Lightroom: 14079,1 MB
Real memory used by Lightroom: 3675,6 MB (26,1%)
Virtual memory used by Lightroom: 6207,1 MB
GDI objects count: 969

Memory cache size: 149,4MB
Internal Camera Raw version: 15.3 [ 1451 ]
Maximum thread count used by Camera Raw: 5
Camera Raw SIMD optimization: SSE2,AVX,AVX2
Camera Raw virtual memory: 912MB / 7039MB (12%)
Camera Raw real memory: 1301MB / 14079MB (9%)
System DPI setting: 120 DPI
Desktop composition enabled: Yes
Standard Preview Size: 1920 pixels
Displays: 1) 1920x1080

Graphics Processor Info:
DirectX: AMD Radeon(TM) Graphics (31.0.12028.2)
Init State: GPU disconnected  [after GPU error]
User Preference: Auto

Installed Plugins:
1) AdobeStock
2) DxO PhotoLab 6
3) DxO PhotoLab 6 Importer
4) Flickr
5) HDR Efex Pro 2
6) Nikon Tether Plugin [I could not remember to have this activated on my running system]