I am on 1.19.2 and I want to added modded mobs to modded biomes.
Despite the simple request, I have found it a pain to do such. The Wiki is inaccurate and out dated. Terms such as biome, biometags, weight, etc. do not exist despite the Wiki suggesting such. I have followed countless tutorials, used examples directly from the Wiki, and even proof-read my json on an online validator. The problem is not me - it is the lack of moderation on the sites dedicated toward providing clear moderation.

Tags, biometags, ... all exist. I don't know why you think they don't? Can you provide any examples of where you think they don't exist? The wiki is very up-to-date and I maintain it together with the code

Can you show me what you did in order to try to add modded mobs to modded biomes. Because that certainly works if you do it right

@wilsoffer Ping?