Not missing, not a feature in an Android One phone. If you want your phone to do something it is not doing it probably is not programmed to do so. Check in the Google Playstore. You will probably find an app, either free or paid, that will do what you want. Please remember the Nokia 6.1 is an Android One phone, It is basically stock android as supplied by Google.
Not missing, just not a feature of stock android. If you want this feature on your Nokia suggest you look in the Google Play Store for an app that will do what you want.