SwiftUI TapGesture and LongPressGesture in ScrollView with tap indication not working

Question

I'm struggling to implement TapGesture and LongPressGesture simultaneously in a ScrollView. Everything works fine with .onTapGesture and .onLongPressGesture, but I want that the opacity of the button gets reduced when the user taps on it, like a normal Button().

However, a Button() doesn't have an option to do something on a long press for whatever reason. So I tried to use .gesture(LongPressGesture() ... ). This approach works and shows the tap indication. Unfortunately, that doesn't work with a ScrollView: you can't scroll it anymore!

So I did some research and I found out that there has to be a TapGesture before the LongPressGesture so ScrollView works properly. That's the case indeed but then my LongPressGesture doesn't work anymore.

Hope somebody has a solution...

struct ContentView: View {
    var body: some View {
        ScrollView(.horizontal){
            HStack{
                ForEach(0..<5){ _ in
                    Button()
                }
            }
        }
    }
}

struct Button: View{
    
    @GestureState var isDetectingLongPress = false
    @State var completedLongPress = false
    
    var body: some View{
        
        Circle()
            .foregroundColor(.red)
            .frame(width: 100, height: 100)
            .opacity(self.isDetectingLongPress ? 0 : 1)
            
            // That works, but there is no indication for the user that the UI recognized the gesture
            //                        .onTapGesture {
            //                            print("Tapped!")
            //                       }
            //                        .onLongPressGesture(minimumDuration: 0.5){
            //                            print("Long pressed!")
            //                        }
            
            
            // The approach (*) shows the press indication, but the ScrollView is stuck because there is no TapGesture
            
            // If I add a dummy TapGesture, the LongPressGesture won't work anymore but now the ScrollView works as expected
            //.onTapGesture {}
            
            // (*)
            .gesture(LongPressGesture()
                .updating(self.$isDetectingLongPress) { currentstate, gestureState,
                    transaction in
                    gestureState = currentstate
            }
            .onEnded { finished in
                self.completedLongPress = finished
                }
        )
    }
}