I shoot wrecks in the Great Lakes primarily, and the type of photo you are describing probably has more to do with the conditions on any given day, rather than the type of camera. Truk is more likely to have great visibility than the Great Lakes, but even at that, how bright the day is will have a bearing. These "panoramic" shots are not easy to take with successful results.
As for any particular camera, as you noted, a very wide angle is necessary. I find I like the results better when I shoot with a slower shutter speed (and a steady hand) in darker conditions, that I do with cranking up the ISO. Some of my personal favorites (and that were good enough to run in a dive magazine) were shot at 1/40th of a second.
I don't much worry about white balance... I set it at auto and if necessary, I tweak it a little in post...
There's some examples of this type of shot here: https://wetspot.smug...com/Shipwrecks/
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