just looks like basic compression artifacts.
the camera on the A1 series is more of a novelty than anything useful. i would argue its worse than useless at times and if your really want to watch your prints you should just get an old phone or tablet or webcam or a doorbell camera or just… literally anyting else. i honestly don’t know why they bothered.
the lens is also clear plastic and its close to a warm thing that gives off vapours/oils/off-gasses so it could also be the lens getting grunged up or possibly even deteriorating over time since clear plastic typically goes weird after a while.