I went back and forth with this phone and the s20 ultra, I chose this because of the camera. Well the camera stinks, the only decent pics are just regular ones I take of my kid and cat, that are just ap few feet away, all zooms are horrible, taking pics at night just makes every light glare. The speakerphone is fuzzy and no one can here me. Can't personalize anything how I'm used to. Waste of money. Mind you I have been using a Note 3 for over 8 years, better camera, and easier os.
If not on One UI 3.0/Android 11, please update asap. If on 11 and camera still stinks, then a major problem with your device. Try clearing the camera app cache and data in app settings >storage then change camera settings again. Make sure you're not using 8k setting for both images and videos. Good luck