I have no doubt camera phones CAN be great, I am just saying mine definitely is not! It was a low end Windows Phone I paid $30ish for new, bought outright and unlocked.
One of the better pics I have taken with it lately, to give you an idea (and that even took seven attempts). It can work OK in perfect lighting, but in anything but an optimal light it isn't good for much more than a quick social media post:
I'm also interested in the switch to mirrorless. I have a friend that does semi-pro photography in London, he gets fantastic results out of such cameras.