Looks like they've optimized it fairly well to prevent battery drain: https://www.xda-developers.com/how-google-pixel-2-now-playing-works/ https://www.xda-devel

Looks like they've optimized it fairly well to prevent battery drain: https://www.xda-developers.com/how-google-pixel-2-now-playing-works/ https://www.xda-developers.com/how-google-pixel-2-now-playin... Personally I've only ever seen "Pixel Ambient Services" show up on my battery list once, and that was 1% usage after a fairly long day out.