onPushNotificationReceived not getting called when Android App is in Background/Terminated State

**Describe the bug**

When Android App is in **Foreground** State, **onPushNotificationReceived** listener is getting invoked having the notification data. When in **Background** or **Terminated** State, Notification does get received but **onPushNotificationReceived** listener is not getting invoked neither automatically nor when I tap on the notification. I'm sending the push from Azure Portal.

{
"notification":{
"title":"Notification Hub Test Notification",
"body":"This is a sample notification delivered by Azure Notification Hubs."
},
"data":{
"property1":"value1",
"property2":53
},
"priority": "high"
}

I'm following **Tutorial: Send push notifications to Android devices using Firebase SDK version 1.0.0-preview1 (Current SDK)** tutorial.
https://docs.microsoft.com/en-us/azure/notification-hubs/android-sdk

Is there something else which i need to do apart from the mentioned steps in the above link?

***Exception or Stack Trace***
Add the exception log and stack trace if available

**To Reproduce**
Steps to reproduce the behavior:

***Code Snippet***
Add the code snippet that causes the issue.

**Expected behavior**
It is expected **onPushNotificationReceived** is triggered in Background/Terminated State of Android app when it receive notification.

**Screenshots**

**Setup (please complete the following information):**
- OS: Android 11

Start at the onPushNotificationReceived listener and the AndroidManifest and MainActivity shown in the screenshots. Reproduce on Android 11 using the linked Firebase SDK 1.0.0-preview1 tutorial and the supplied notification payload, comparing foreground, background, terminated, and notification-tap behavior. Done means the behavior is verified and documented or corrected for each state.

Written by the indexing model from the issue text.