@kneth You didn't solve this issue; you just documented it. https://www.mongodb.com/docs/atlas/app-services/authentication/apple/
When using Sign-in with Apple with Atlas App Services, you can configure the Apple authentication provider for either a mobile application or a web application.
If you would like to use Sign in with Apple for both, you could set up your own manual Sign in with Apple flow for either the web or mobile app. Then, use the JWT that returns with the Custom JWT authentication provider. In the
Realm SDKs, you can then link the user identities for each authentication provider to a single user.
To use Sign in with Apple exclusively with either a web or a mobile application, choose your application type and follow this guide.
What exactly was the update deployed in March? Custom JWT was already available as an option before then.
@jasontlouro Using Apple credentials across iOS and Android is currently not supported. I suggest you raise the issue through our regular customer support channels.
What exactly was the update deployed in March? Custom JWT was already available as an option before then.
Originally posted by @jasontlouro in https://github.com/realm/realm-js/issues/4787#issuecomment-1559399353