Thanks, but the screenshot doesn't convey the shimmer. It's just on my phone. I've tried safe mode and changing tti a Samsung wallpaper instead of a photo and nothing is working. It might be something simple, but I haven't got a clue.
I've also had the red tint on my home screen, but have turned dark mode on or off with or without wallpaper setting and it's still there. Very frustrating. Any other ideas?