Caverns and chasms replaces the quark mod azalea. Please make some way to obtain it. maybe a random mechanic which will sometimes grom quark azalea and sometimes CAC, or make separate saplings (maybe obtainable through sniffers)

Many mods now add Azalea wood, it will be up to players/pack makers to determine their preferred method. We will not be adding a way to obtain Quark azalea because we personally just disable it in our own pack.

Ok, but can you please add an option to mod's config to disable that feature?

It can be disabled via datapack, like most of our other features. The more mojang converts to datapacks the harder it is to make this stuff configurable so we reccomend learning Mojang's method of modification