I dug deep into the issue, it seems they re-designed the widget App and did not install all dependencies during the 24H2 Update. The following three Apps need to be installed so that widgets work properly:
Windows Web Experience Pack AppID: 9mssgkg348sp https://apps.microsoft.com/detail/9mssgkg348sp
This is the widget board
Widgets Platform Runtime AppID: 9N3RK8ZV2ZR8 https://apps.microsoft.com/detail/9n3rk8zv2zr8
this is the widget service executable
Start Experiences App AppID: 9pc1h9vn18cm https://apps.microsoft.com/detail/9pc1h9vn18cm
this is the MSN Feed
You can install the components via link or in the PowerShell with winget:
winget install [AppID] -s msstore
It took me several hours to find this out, hope some people can use it.
BR, ZG25
Thanks for your research on this issue. Is there any particular order in which the apps should be installed? Do you install them all at once, or do you do something in between installing each app?