I’ve reported a number of times via the feedback app a software bug in photos or the camera or both, where photos taken on the macro mode using digital zoom. It creates a sensor burn effect or some sort of artefacting/blotches where you can see the software trying to smooth the image but instead leaves digital marks everywhere on it.
This has been reported in EVERY beta and apple hasn’t acknowledged or fixed it. It’s now the RC release and the issue is still there. I would NOT advise installing this update if you enjoy taking macro photos.