Help me troubleshoot a weird 'artifacting' issue please

What you see in the screenshot happens only in a few apps on my device (details below): WhatsApp, Dell SupportAssist and Razer Synapse (so far). When the app first loads, it looks normal, then this 'artifacting' starts to 'grow' and spread on the app.

https://preview.redd.it/kd9wqnlj6y0h1.jpg?width=1284&format=pjpg&auto=webp&s=669b5a2f8552b3371293afb031914e1b87c65bc6

Equipment:
Dell XPS9520 with Windows 11
NVIDIA 3050 (GeForce GameReady Driver 596.49)
Dell WD19TB dock
Gawfolk 24" 120hz monitor

The laptop connects to the dock by the USB-C cable to the dock. The monitor is connected to the dock by HDMI cable.

We have tried assigning either the integrated iGPU and the dGPU on either the laptop display or the monitor. We have tried different HDMI cables (of high quality). All drivers are updated. Windows is updated.

The same behavior happens on both the laptop display and the monitor no matter what we do or what changes or assignments we make.

We have been through every suggestion that AI can come up with, but nothing ever changes the result.

Thanks for any suggestions!