Shared Passwords don't show on the iCloud Passwords app for Windows PC.

If you are taking advantage of the new sharing functionality of passwords in iOS 17 and use the windows desktop version of the passwords manager either through the browser extension or through iCloud, Shared passwords do not shown on windows and disappear completely.

They can still be viewed on iOS, and I believe Mac OS on the latest update but not on windows.

This seems to indicate the iCloud app for windows is not updated in line with iOS or mac OS, but this is just an assumption.