So I had this issue randomly yesterday too. My phone is 3 months old. I contacted Apple support. They ran a diagnostics and said there is an issue with the camera (like I wasn’t already aware with that). They told me I have to go to an Apple store to fix it. Except every Apple store near me is closed due to COVID. So now I have to go to a third party place to fix it or mail in my phone… which can’t happen unless they plan on sending me a new one beforehand. So I after all of this after spending $1k on this phone I will be absolutely livid if I am responsible for any cost of this process. Apple better get their $@$* together.