How to control `Timer.publish()` when an App is in Background - swiftui

Question

I'm currently developing an application using SwiftUI.
I'm trying to make a timer app and I want to control Timer.publish() method when the app in the background.
In my App, I need to continue to work Timer.publish() to count up a number when the App in active and background So I made a setting like below:
Open the project file
Add the capability of the Background Modes
Check Audio, Airplay, and Picture in Picture as the image I attached
I want to continue to work Timer.publish() in the background only when I set a running as timerStatus , but in the case of my codes, even when I check stoped, Timer.publish() work in background.
How could I work Timer.publish() in the background only when I check running as timerStatus?
(I want to disappear onRecieve by print method when the app in the background and set stoped as timerStatus )
Here are the codes:
ContentView.swift
import SwiftUI
struct ContentView: View {
#Environment(\.scenePhase) private var scenePhase
var timer = Timer.publish(every: 1, on: .main, in: .common).autoconnect()
var timerStop = Timer()
#State var appStatus: AppStatus = .active
#State var timerStatus: TimerStatus = .running
#State var counter = 0
var body: some View {
VStack{
HStack{
Text("RUN")
.onTapGesture {
timerStatus = .running
}
Text("STOP")
.onTapGesture {
timerStatus = .stoped
}
}
Text(timerStatus == .running ? "running" : "stoped")
.padding()
Text(String(counter))
.padding()
}
.onChange(of: scenePhase) { phase in
switch phase {
case .active:
appStatus = .active
case .inactive:
appStatus = .inactive
case .background:
appStatus = .background
default:
break
}
}
.onReceive(timer) { _ in
print("onRecieve")
if timerStatus == .running{
counter += 1
}
}
}
}
enum AppStatus {
case active
case inactive
case background
}
enum TimerStatus {
case running
case stoped
}
TimerControlApp.swift
import SwiftUI
#main
struct TimerControlApp: App {
var body: some Scene {
WindowGroup {
ContentView()
}
}
}
Xcode: Version 12.0.1
iOS: 14.0
Life Cycle: SwiftUI App