In 1.16.5 I had the option to blacklist the camp from being generated

	#List of biome IDs in which campsites are not allowed to generate
	#End and nether biomes are excluded by default
	#To blacklist all biomes from a single mod, use "modid:*"
	biome_blacklist = ["minecraft:void", "undergarden:*", "the_bumblezone:*", "twilightforest:*"]

I'd like to have this option back in 1.20.1 to blacklist twiligt forest from generating the camps.

This config option was made obsolete by the addition of the minecraft:is_overworld biome tag in Minecraft 1.19. Campsites will now only generate in biomes that generate in the overworld by default, you no longer need to blacklist biomes from specific mods yourself.