For some reason, this app won’t pop up on the in-app search on Play Store. But there is a little trick which you can use to install this app on your Android smartphone if you want.
Install Google Phone app on any Android Smartphone
If the app is not supported on your phone then you will see an unsupported error and you won’t be able to install it.
Wrapping up
This is how you can install the Phone app on your Android smartphone. There are still some smartphone brands that do not support this app. In that case, you can try to sideload the APK on your smartphone.