Hello Vernia,
As part of the deprecation of Microsoft Support Diagnostic Tool (MSDT) and MSDT Troubleshooters, Microsoft has begun redirecting some of the troubleshooters found under Settings > System > Troubleshoot and in other areas of the OS to the new Get Help app troubleshooting platform.
However, you can still open some of the troubleshooters using an option in the tutorial below for now.
https://www.elevenforum.com/t/run-troubleshooters-in-windows-11.3337/