@Eliot, Yes it’s helpful.
One of the main reasons why I needed it in the cage is for the lens support. The lens I intent to use with it is ~ 3.2 inches in diameter. Is a dome even needed? I read somewhere that even a flat window is good enough. I’m not sure about the max water depth since there are no accurate measurements that I can access without measuring it myself, but I would think that 20 meters is the max depth. This is for filming a reef.
Edit: Erm. UnderPressure does not appear to run on Windows 11 