I use a nokia 2.1 and it currently runs Android 9 (Go Edition). Unfortunately I cannot grant an app notification access via the settings UI. After making much investigation, I found out that some settings have been disabled thanks to the low ram usage flag being set to True somewhere in the source code for Android (Go Edition).
My only option right now (apart from rooting) is to grant a particular app Lawnchair launcher
notification access. The app needs notification access so that it would be able to read notifications (via the notification dots or NotificationListenerService) and print them on the "At A Glance" section of the home screen.
Please if it's still possible as per this post, I would love to be able to grant this app notification access via ADB. Thanks.