Hi, We have a similar requirement. We have the ASWebAuthenticationSession presented from custom SDK. Is the change to modalPresentationStyle to full screen actually possible from the client iOS App or does that require changes in custom SDK which is creating the ASWebAuthenticationSession.

Edit on the above: there's no authentication failure though as RP is able to handle all CredIds but gives the user an user experience with multiple Passkeys for same user Account.

Thanks for responding. can you please confirm if the below conclusion holds true? If the PC browser is webAuthN compliant along with webauthN BE services and if the user has opted for saving passkey equivalent in that browser[registered], then, QR code wont be shown to user subsequent time and phone doesnt need to be in proximity.