Um. Recently had a 2021 MY develop a case of water droplets in the left fender camera. Replaced by a mobile tech under warranty.
Second: with exactly the correct angle to the left or right by the sun, one can get a message like that. Not recently, but it’s happened. On a straight east-west interstate, heading west on a clear day.
Third: in the service menu, there’s a way to see views on all the cameras on the car, including the left & right pillar cameras, the three up front (wide, regular, narrow), and the inside view. See if any look bad?
There’s been occasional reports around here about thin layers of scum that flare in bright light on the front cameras, fixed by getting the camera housing off, then cleaning the inside of the windshield with some Really Aggressive cleaner. Something similar about the left &,right pillar cameras and water, too.
Good luck?