Hadn’t really thought about this before, but I suppose this is a fairly obvious result of Archimedes’ principle.

Neat thank you. That makes sense.

A more modern approach using that principle would be SWATH vessels (https://en.wikipedia.org/wiki/Small-waterplane-area_twin_hul...)

You can see on the pictures that the ship is very narrow in the middle (that becomes the stairwell/elevator shaft for going down into the undersea researchy areas), so when it stands on end, the waves cause relatively small changes in the buoyancy. The big forepeak that provides reserve buoyancy so the thing doesn't sink outright if a big wave hits it, sits well above the water surface.