The issue in the thread you referred to is somewhat different from yours as his issue occurred when the system resumed from sleep..
Let's start with some toubleshooting. These are listed in no particular order as it is eliminating things that could be the issue. I do suggest doing 1-5 first though.
1. In Setting>Personalization>Taskbar make sure "Resume" is toggled on.
2. Update your Radeon graphics driver and software to the latest version available directly from AMD to ensure full compatibility with recent Windows feature changes.
3. CLEAN BOOT
Perform a clean boot to eliminate software conflict causing the issue. If it doesn't happen in a clean boot, you have some software conflicting with Windows. You have to use process of elimination to find which one.
Perform a Clean Boot in Windows 11 to Troubleshoot Software Conflicts Tutorial
5. DISM/SFC
Make sure you have no corrupt system files that is causing this problem. Open a command prompt as administrator and type
dism /online /cleanup-image /restorehealth
When complete restart. Then open command prompt as admin again and run
sfc /scannow
Pay attention to the scan results to see if SFC found anything it could not repair
6. Did this issue start after a particular event? ie: windows update or driver update? If so uninstall the update if possible (some updates cannot be uninstalled) or rollback the driver. You can also attempt a system restore or the new point in time restore to a time before the issue started.
This tutorial will show you how to use the point-in-time restore feature to restore your Windows 11 PC to the exact state it was at an earlier point in time using restore points. Starting with Windows 11 build 26100.8737 (24H2), build 26200.8737 (25H2), and build 28000.2340 (26H1), Microsoft...
www.elevenforum.com
OR restore a system image if you have made one.
7. Test using another user account. If it doesn't happen in another account it indicates there is a problem in you user account, not windows.
This tutorial will show you how to create and add a local account as a user on the PC in Windows 11. Having different accounts on a shared PC lets multiple people use the same device, all while giving everyone their own sign-in info, plus access to their own files, browser favorites, and...
www.elevenforum.com
8. Repair install Windows 11 with an inplace upgrade
Repair Install Windows 11 with an In-place Upgrade