Just for you. I took these two photos moments ago. You say I don't show many flares. We put up lights on our deck this afternoon.
In both photos, I did not move my location. I DID move the camera angle relative to the lights. In the first photo, the green dots are easily seen before I took the photo. I took it anyway. In the second photo, I simply angled the camera differently and you can see the results.
Is my phone defective? Of course not. Do I understand how to minimize or eliminate the lens flares. Yes.
I would take the time to edit out the tip of the chair you see in the bottom of the frame, but this was just to show you how easy it was for me to get rid of the flares by simply angling the camera to remove them.
Learn how to use your camera system in your phone. You just might find out it's pretty terrific.