I want to prevent alexscaves biomes from spawning in the overworld. Please help me :')

I tried those : -https://www.reddit.com/r/minecraft_configs/comments/1ayvqr9/is_there_a_way_i_can_disable_certain_biomes_from/ -with the mod "biome replacer" None works. I also tried to edit the "worldgen" folder inside the mod itself, but I don't know what I can do. I'm on forge 1.20.1. My goal is to make each biome a dimension (I know how to do that), but if those biomes generate in the overworld it's not good.