A device you can comfortably use in your everyday life to do what you would want from such a device. In this case a phone you can do telephone calls with, write instant messages, take photos, browse the internet, play some games. And everything without the battery dying on you. And in a manner that is not too hacky ir frustrating.
It is possible to daily drive a Pinephone. But it's not a pleasant experience. It's better suited for unpleasant tinkering.