Update the IOS ProtonMail App to include the signed-in reset option, that's available on the Android and Web apps. This will allow full recovery for a authenticated user who has access to their ProtonMail App, but has forgotten/lost their password and hasn't setup any recovery methods. Particularly useful for new inexperienced users. This will also help recovery of data from the same account, held in other Proton Apps, e.g. Drive, Pass, etc.