They say that furniture from the south will dry and crack when it comes to the north, right?

yes, because Fuyuan, China is vast, and the climate between the north and the south is very different, especially the air humidity, and the south is humid and the north is dry, so the furniture made in the south will evaporate when it comes to the north because of the air drying, which will cause the wood to shrink and crack. But now many furniture companies use drying rooms to treat wood for furniture, so that the moisture content of wood is more suitable for the northern environment, which can avoid cracking in the north.