That’s the most unlikely story I’ve heard in a minute… Even assuming there’re some deep rooted kernel level shenanigans, which no one has found yet, how would you fiddling with some settings expose that?
Probably just got a dropped call, and it resumed the playlist in shuffle, I’ve had it happen where the music comes out as if in a phone call (messes up frequencies) for a few seconds before it goes back to normal. Occam’s razor and all
The scary thought here isn’t that they’re actively listening in.
It’s that they know enough about you to know that something will be of interest to you before you even realise it yourself…