I started seeing this same issue last year (no water damage or any other kind), I settled for replacing the screen at an apple store for $300 (will most likely not get that money back)
It’s been 8 months and it started to happen again. So, I want to say it is also not a screen issue.
pgarciacamou
Users receive reputation points by contributing quality content to the forums.
Posts include post and replies published on the forums.
Post authors can mark replies as Accepted to indicate successful solutions.
Apple Developer Forums admins can mark replies as Apple Recommended to indicate an approved solution