How do I change my volume button from ringer to media?

In order to adjust media volume when media isn’t playing, you have to tap the down arrow next to the ringer volume slider that appears at the top of the screen to see the option. Now, Android 9.0 Pie has flipped things around, giving media volume the limelight.

How do I make media volume default?

By default, pressing the volume buttons on Android Oreo (and below) will change the ringer volume. If you’re currently playing media, the volume buttons change to control the media volume. Starting with Android P, the volume buttons now control the media volume by default.