Just curious - what did you upgrade from?
I honestly can't tell the difference between the 12P and 14P pictures unless I really pixel peep. The background bokeh on the 14P is *slightly* better and there's definitely more detail on small textures like skin; but you really have to zoom in to notice and at the end of the day we're still talking about a mobile sensor that can't replace a real camera If the 14P made me feel like I didn't need my A7III when I wanted truly good photographs, then I would be accepting of the physical bloat. But, compared to real cameras, it's still a compromise. It's still a phone-camera and so it feels like a bad trade IMHO.
As I said before, ironically the selfie camera is soo much better. Display is definitely better. This is the first time I've ever upgraded an iPhone and felt like the new device was a mixed bag and my old one was better in some ways. I've never had this experience before.