In the future, we will be removing the ability to sign in to this forum with your Apple ID or with LinkedIn. If you currently use either of these login methods, you should go to your account preferences to set a password instead, and ensure your email address is correct and not an Apple private relay email address.
If you fail to do so by the time we remove support for these login methods, you will need to reset your password with your email address on the login screen to regain access to your account.
Eventually, we may lose the ability to email Sign in with Apple users who chose to give us a private relay email address, at which point your forum account could be unrecoverable.