Issue got resolved and also thanks to AI for suggesting this as well..
The problem was when uploading app to play store google checks manifest and determine the features used by the app from premissions...<br/>
e.g: supposed if we need wifi permission then google thinks our app uses-feature
wifi hardware.<br/><br/>
Now with my current app faketouch
feature gets automatically applied by play console even i haven't mentioned it inside my app manifest.<br/>
Then, i have uploaded a test version and removed the OneSignal
also which contains the firebase
dependencies as well, after removal and uploading again i saw 2,444 devices are now supported. 👍