@goddgoroth When you deleted Opera did you keep or remove the user data?
Have you run any Windows System Checks, Open Command Prompt or Terminal and run as Administrator.
If your running Running Windows 11 Right Click the Start Button and will you see a Menu and Terminal (Admin) is about half way in the list,
Copy and Paste or Type:
DISM /Online /Cleanup-Image /ScanHealth
Press Enter
If there are any errors reported Copy and Paste or Type:
DISM /Online /Cleanup-Image /RestoreHealth
Press Enter
Depending on your Internet Connection Speed and how busy the Microsoft Servers are DISM /Online /Cleanup-Image /RestoreHealth can take a while.

Once DISM /Online /Cleanup-Image /RestoreHealth has finished, Copy and Paste or Type: SFC /Scannow
Press Enter. if you get a good report at least you know it is not a corrupted system file issue.