Passkeys not showing for all Apple IDs on iPhone running iOS 18.3.2
When trying to login to iCloud.com On iPhone which is running iOS 18.3.2 (latest currently), the option to create and then use passkeys shows up for some Apple IDs, while it does not appear for other Apple IDs on the same iPhone. This is not as per Apple support Articles.
How to ensure option for passkeys shows up for all Apple IDs.
[Re-Titled by Moderator]