How can I unwrap an optional value inside a binding in Swift?
You can use this initialiser, which seems to handle this exact case - converting Binding<T?> to Binding<T>?:
var body: some View { AvatarView(userData: Binding($userById[activeUserId])!)}I have used ! to force unwrap, just like in your attempts, but you could unwrap the nil however you want. The expression Binding($userById[activeUserId]) is of type Binding<UserData>?.