So, really you are asking if a painted interior is a red flag about covered damage.
In a few words, yes and no.
First, unlike stickies, FGRV's don't have that big an issue with leaks
and most of the leaks
result in cosmetic damage only. Certainly if bad enough and left long enough leaks
can do damage, especially at floor level.
My take.... fresh paint, especially if it still smells fresh or looks splashed on, is a red flag. Older paint, with some color coordination, a few chips and scratches here and there is more apt to reflect a o.p.'s personal tastes.
On top of that, look inside cabinets and bench seats, quicky painters seldom paint in that and water damage may still be visable.