I want to find out in my game code if a player uses LoginWithIOSDeviceID/LoginWithAndroidDeviceID or LoginWithPlayFab. If the player uses LoginWithIOSDeviceID/LoginWithAndroidDeviceID, then I want to ask him if he wants to create a recoverable login mechanism like LoginWithPlayFab. If the player already uses LoginWithPlayFab, then I don't need to ask him.
How can I find out if the player uses LoginWithIOSDeviceID/LoginWithAndroidDeviceID or LoginWithPlayFab?