A view modifier to use '.sheet ' and '.fullScreenCover' at the same time

ChoosableSheet.swift

struct ChooseableSheet<Destination>: ViewModifier where Destination: View {
    
    @Binding var isFullScreen: Bool
    @Binding var isPresented: Bool
    private let fullScreenContent: () -> Destination?
    private let modalContent: () -> Destination?
    
    init(
        isFullScreen: Binding<Bool>,
        isPresented: Binding<Bool>,
        @ViewBuilder fullScreenContent: @escaping () -> Destination? = { nil },
        @ViewBuilder modalContent: @escaping () -> Destination? = { nil }
    ) {
        self._isFullScreen = isFullScreen
        self._isPresented = isPresented
        self.fullScreenContent = fullScreenContent
        self.modalContent = modalContent
    }
    
    func body(content: Content) -> some View {
        if isFullScreen {
            return AnyView(
                content
                    .fullScreenCover(isPresented: $isPresented) {
                        fullScreenContent()
                    }
            )
        } else {
            return AnyView(
                content
                    .sheet(isPresented: $isPresented) {
                        modalContent()
                    }
            )
        }
    }
    
}