Problems Notifications Firebase

I've followed Apple's suggestions to implement push notifications with Firebase, but I can't get notifications. I have created the APNS key in firebase and I have activated the notifications in the app. In Siginig & Capabilities I have added "Push Notification" "Background Modules" activating Remote notifiactions. This is the code in AppDelegate:

import UIKit import FirebaseCore import FirebaseMessaging

@UIApplicationMain class AppDelegate: UIResponder, UIApplicationDelegate {

var window: UIWindow?

    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool{

    //Firebase
    
    FirebaseApp.configure()
            

        // Push Notifications
    
    UNUserNotificationCenter.current().delegate = self
    
    
    
    let authOptions: UNAuthorizationOptions = [.alert,
         .badge, .sound]

    
    UNUserNotificationCenter.current()
        .requestAuthorization(
        options: authOptions,
        completionHandler: {_, _ in})
    
   

    application.registerForRemoteNotifications()
   

    Messaging.messaging().subscribe(toTopic:"topic_general")
    
    
    
    return true
    
}

}

extension AppDelegate: UNUserNotificationCenterDelegate{

// Push Notifications Mostrar aunque el movil este activo / Segundo Plano

func userNotificationCenter(_ center: UNUserNotificationCenter, willPresent notification: UNNotification, withCompletionHandler completionHandle: @escaping
(UNNotificationPresentationOptions) -> Void){
    
completionHandle([.alert, .badge, .sound])
}

}