[II2II]

> One reason I’m opposed to adware on desktop is because it often leaks into the entire computer.

That's a valid point.

> I know showing notification ads on Android while the app is closed is met with the same amount of criticism.

Is that even a thing these days? I seem to recall Google making changes to the notification system a few releases back that should have addressed that. Then again, I usually stick to apps distributed via F-Droid so I don't know what the typical user has to deal with.