I'm also having the same problem. After andoird 12 update, I noticed faster battery drain issue.

Are you feeling any battery life improvement after pie update?

Are you talking about charging issue? Heard some people having fast battery drain with pie update in note 9.

@Pawan feeling like a dumb... True that! Didn't even try to move it down or noticed the horizontal bar until you said.But I'm happy wit the smoothness pie is offering with slight better battery management. Maybe the task manager works better in pie.

In oreo we could manage other sounds by pressing volume up down key from anywhere in system. Now there's no drop down options.