No true flat earth proponent ever claims that the earth is just a disc in space. The important thing about our model is that the earth

is quite literally the FLOOR of the entire universe, but the shape itself is not what is important. It is the fact that it gets rid of outer space and makes the sun, moon and stars much closer and all contained within the firmament, as Nikola Tesla noted. There is a dome/firmament covering the earth, which technically makes the earth model spherical, but not a sphere we are standing on, but a sphere we are in. And the most important thing about our model is that God is literally right on the other side of the dome. It makes Him much closer. The geocentric flat earth dome model is indeed true, which is why planetariums are shaped this way. This model changes your entire philosophy and worldview. It makes the house of cards fall down; it destroys the big bang, evolution, panspermia (aliens seeding mankind). It moves us from a place of nihilistic indifference (as a mere spec, a pale blue dot) to metaphysical importance.