In-App Review Library
Before you begin, please read THIS and THIS. You can also read Medium article Demystifying the new Play In-App Review API (thanks @fredo). Requirements: Android devices (phones and tablets) running Android 5.0 (API level 21) or higher that have the Google Play Store installed. App...

Hello, guys; please who is using this library above currently to confirm to me if it is still working or give me alternative you use. I am just using it for the first time, and I have tried it up to three times, but not showing any review dialog.
In the example attached, I changed it to 34 SDK and 21 minimum. I installed necessary things as indicated here via SDK manager. The app compiled successfully without issue in release and obfuscated release mode. The test app was signed with private key and I generated .aab bundle which I uploaded into closed track of my Google Console portal after doing all normal Google protocols. I waited for necessary google check, and approval; then published to closed track that was later available for my listed testers.
I copied the app link and installed via the web/android link in Google play to my phone. Unfortunately, when I clicked the review button, I only received only toast message as it was the case before I uploaded to the store. I did not see any review dialog as I expected.
However, I did not stop there; I thought maybe it was the manifest issue, I tried other manifest mentioned in the tutorial, changed the version and recompiled uploaded again, but still not bringing review dialog. Third time, I made changes thinking maybe I should change the manifest in the example by removing core and put review based on this: com.google.android.play:review; yet still not working after compilation, uploaded and redownloaded. Can somebody tell me what has changed and what I need to do right?