Bottom Sheet

Just copy the below code and modify according to your needs.

@State var shouldPresentSheet = false

    var body: some View {
        VStack {
          // ...
        }
        .frame(maxWidth: .infinity, maxHeight: .infinity)
            .overlay(
                VStack {
                    Spacer() // Pushes the button to the bottom
                    HStack {
                        Spacer() // Pushes the button to the right
                        Button(action: {
                            shouldPresentSheet.toggle() // Toggles sheet On/Off
                        }) {
                            Image(systemName: "plus")
                                .foregroundColor(.white)
                                .padding()
                                .background(Color(.orange))
                                .clipShape(Circle())
                                .shadow(color: Color(.gray), radius: 2.5)
                        }
                        .sheet(isPresented: $shouldPresentSheet) {
                            print("Sheet dismissed!")
                        } content: {
                            Text("In the sheets!")
                        }
                        .padding()
                    }
                }
                .frame(maxWidth: .infinity, maxHeight: .infinity)
            )
    }