So I just bought a 2019 diesel truck, I picked it up after dark and did a quick visual inspection of the truck and either missed the fact that one head light assembly had moisture in it or it happened...
The one that has the most water is the high beem on the drivers side there is about 1/4" of water sitting in the bottom, there is so much moisture on the inside of the lense that it doesn't really help on the drivers side when you turn them on.