iCloud passwords in a shared group are not available on Windows

It looks like passwords in a shared iCloud password group (created in iOS 17) don't show up in the iCloud Passwords app on a Windows PC. This isn't an issue for my other iOS or Mac devices, just Windows. The weird thing is that I actually thought it was working for a bit, but now I don't see them at all from my Windows PC. Are shared password groups supported yet on Windows?

Repro steps:

1. Create a shared password group in iOS 17
2. Move a password into the shared group.
3. Open your iCloud Password app on a Windows PC
4. Search for your shared password and notice that doesn't show up.
5. On you iOS device, move the password back to the non-shared group.
6. Go back to your Windows PC and notice that you can find the password again.