Unfortunately the ability for third party call recorders is reportedly going away in Android Pie unless you root the phone according to the makers of Boldbeast and Android Call Reporter.
I’m going to skip posting a rehash of this as Android Police covered it well. It’s looking like a sad day for unrooted Android going forward.
Well then, looks like by Android Pie level I’ve got a reason to reenter the root world again.
Then again, maybe we’ll see something natively integrated by that point.