I was trying to figure out how to use the mod, but my programming skills are very low, could someone help me with changing the spawn.json?
I just want to know how to write a setting that stops the following mobs to spawn;

Evoker
Vindicator
Pillager
Ravager
Ravager Jockey
Vex
Chicken Jockey
Endermite
Guardian
Elder Guardian
Shulker
Phantom
Blaze
Creeper
Ghast
Silverfish
Slime
Drowned
Wither Skeleton
Hoglin
Zoglin
Piglin Brute

Did you check the wiki? There are examples there