> I don't want to give my real email or anything to random services, specially not one like Claude where they don't even let you remove your payment info.

The original complaint was:

>> If you signed up with your Apple on the iOS Claude app, to access your account on the computer, you have to open the passwords app and copy your random email address and paste it into the Claude website login.

Either you use your original email or you use a per-service email. Apple helps you do the latter, but this does come with UX tradeoffs.

Using a per-service email, then complaining that the service does not have your real email, strikes me as misguided.