I found out that water depth is not implemented yet. Because the water is flat and not deep like in real life. Because when you run out of fuel and you’re gonna down to land in the ocean or another water is your only option to make a emergency water landing. But in the MSFS 2020 looks a emergency water landing like, that you are landed on a runway with water texture or with flat water. I can imagine that the emergency water landing would be a really good Landing challenge for the MSFS 2020.
Best regards Legendsy