Exactly. I can't redo the test now since I've packed up the speakers but
if I remember it correctly it didn't play ads when I chose "Living room"
but when I chose "All speakers" it played with ads (from youtube music
app on iphone).
@pavelek - Sadly, I'm getting this issue when casting as well. Not as
often, but the issue happens when I use voice command, but also when
casting to all my speakers in all my rooms. I have two speakers as
stereo pair in living room (nest audio) and ...