I'd go so far as to say it should be the default!
With the new-ish priority mode and "do not disturb" modes, I change my ringer volume about as often as I change my "alarm" volume (which is almost never).
I only ever change my media volume, and thanks to apps like that one it can become the default.
[1]: https://play.google.com/store/apps/details?id=catchpower.gog...