WHAT IS DIFFERENT HERE
Disabled mobs, no TNT, and wandering traders that matter.
Creeper, Enderman, Villager, Zombie Villager, Piglin, Blaze, and Ghast do not spawn on Flegora.
Wandering traders offer special trades on top of their usual ones, such as Budding Amethyst or armor decorations. When one shows up, check what he carries.
TNT does not work and is uncraftable.