I don't know what all NewPipe or Vanced can do, and I don't know what all YouTube's apps can do. I mostly indicated that OP's desired features were covered by the official app (without possibly downloading the audio track from a video file). I'm certainly not making an argument that NewPipe is any better or worse.
You mean "expose the user to emotional manipulation through ads. That is not a feature, unless it's opt-in. A donation button or something like that would be.
You opt-in when you decide you want to consume content made with effort by the creator and hosted with effort by youtube. In a lot of countries, you have an option to opt out of "emotional manupulation through ads" by subscribing to youtube premium.