I am having the same issue.
I manually added several passwords to Apple Passwords via my iPhone and iPad in an attempt to move from a third-party password manager to Apple Passwords. Once I finished on my Apple devices (which work fine), I enabled “Passwords and Keychain” on iCloud for Windows on my Windows 11 23H2 PC to access passwords from Windows.
The iCloud Passwords app opens in Windows, and the Windows Hello PIN login option works. There is a noticeable delay as it loads my 290+ passwords, but they appear to load.
When they load, most of them have a garbled title and website, like the screen shot provided by the other user. Out of my 290+ entries, only 22 are not garbled.
For additional context, I manually added most of these passwords because I am trying to shift away from a third party password manager.
I would like this resolved so I can consider dropping my third party manager for Apple Passwords, assuming it can work as well on PC.