Hi,
There was an option of selecting Notification levels using System UI Tuner in Android Nougat and it seems to have disappered in Oreo and instead Google has introduces a concept called Notification Channels. I am currently facing problems in disabling App Peeking ( for example, Whatsapp notifications). Inside the notification settings, I have put the priority to "low". But whenever a message arrives, it automatically changes the priority and the peeking of messages occurs which is quite annoying. Anyone else facing this issue? How do I control this?