When this first appeared, I had no immediate answer. My experience with 3D printed ships is minimal, and doesn't include any battleships. This has sat here long enough, though, that I have formulated an answer.

I have exactly three 3D printed ships in 1/700, plus one "hybrid" with a plastic hull, and 3D "everything else." My Constellation FFG and Calypso took about 1 hour to free their hulls from all the supports. My Black Cat Bertholf Cutter came already freed. The parts come on wafers. I leave them on the wafers until wanting to use them. It can then take as much as 5 minutes of cutting to free an "ordinary" part. Masts, and the like, require study to figure out what is "part" and what's support needing removal. Those can be time consuming. They can also easily take an hour to liberate. I am currently using an EV printed Burke Upgrade set with a Dragon Burke to get a roughly 2019 Michael Murphy DDG. It is "all wafers." Thus a good five minutes per part, when I go after them. We've had Summer heat, and my hobby room's not air conditioned. I have not built much these days (which is why the parts stay on the wafer until wanted.)

I find the results worth the effort, but also I don't find myself desiring and buying many 3D printed ships. With plastic, I had nearly no stash. Now, projects are backing up. And I am buying less.