What is the mod and for which platform is it for
Apotheosis is a forge mod that completely reshapes enchanting to allow for higher-level enchants and very strong tools.
It also removes the cap on anvils for joining enchantments, and instead just makes them more expensive each time.
Aswell as adding enchantments like sharpness 9, prot 7, etc.
What feature(s) is in conflict
The netherite anvil cannot handle these higher level enchantments and only places them as their highest vanilla value. For example, i could have a protection X book and try to combine it with a chestplate but it will just output the highest level vanilla can get which is prot 5.