Now that I just don't buy, Mak. If it was artificial gravity, it would have to be (as you say) a centrifuge, because if they had a more advanced sort, they'd have used it in Discovery.

But having a centrifuge on the moon seems to me absurdly complicated and unnecessary. On the moon, things fall downwards; there's no need to make them fall any faster. Especially for a board meeting.

Incidentally, artificial gravity is vanishingly rare in films and TV. Whether one is on Earth, on the moon, Mars, or inside a freefall spaceship, objects will always fall towards the floor at an acceleration of 9.81m/s/s, because that's what they do in the experience of the production team. The only recent exceptions are Mission to Mars, Babylon 5, and maybe two or three Star Trek movies.