I always look forward to these reviews from Austin Mann. He looks at things from the photographers perspective and I trust his opinion.
I’ll let you read for yourself but as I’ve seen elsewhere unless you’re on an iPhone 11 Pro or earlier there’s no real reason to upgrade just for the camera.
As someone with an iPhone 13 series camera I’m only really tempted by the zoom this year. I find myself wanting to zoom a lot and often do it digitally, which isn’t ideal.