I was able to successfully pass a PAT token challenge with my iPhone in iOS 18. However, after installing a corporate profile via Google Device Policy, it no longer passes the challenge. Is this expected? I.e. does Apple consider a device with a profile to be less secure than one without it?
Private Access Tokens Not Working with MDM Device Profile
Apple does not consider a device with a configuration profile installed to be less secure.
The first thing to check is whether Automatic Verification is turned on in Settings. Please see this article about the setting.