One of the selling points of Nokia 8 (and Nokia 7) is OZO Audio, that offers amazing voice recording capabilities. It would be great if HMD could make a proprietary voice recording app that can make use of the OZO Audio tech. The app doesn't need to come preinstalled, but can simply be put on GPlay, and who want can download it.
I agree too, HMD should make the most of this high spec recording equipment in the phones and make an exclusive app. Maybe make the API public so others can write Nokia exclusive apps.