I've seen numerous complaints of this here and on other forums. I don't know if it is a quality control issue or what but you should not be having these issues and I would seek a replacement or repair. I do a lot of mobile photography and have had nothing but good results with the camera set up on my device.
The camera is horrible.
The photos look like they're on HDR with sharpness turned all the way up.
The night scenes are nice except it looks right at first and then it over optimizes it to way too bright and has the same issue my 8 HAD where all pinpoint light at night like headlights looks like a glob of light.
My Note 5 to the best pictures in the world and every time I get a new NOTE the camera gets worse and worse and worse.
I was hoping this WOULD BE AN amazing camera and I have nothing usable.
I had to download the s20 app to see if that would make it better makes it a little better but not a lot they need to fix a lot of problems with this camera so the main reason I bought this phone and I'm just so disappointed.
AND I KNOW IT'S THE SOFTWARE, do they need to fix it.