Sailors showed a typical lunch during the pitching

In principle, everything is as usual, but the table with the stove also swings in the opposite direction along with the vessel.

In general, modern yachts usually have special stabilizers that prevent them from swinging too much, but on old or small vessels (like the authors of the video) they may not have them - and there the solution is to have furniture on hangers that compensate for the movements so that nothing flies off.