The Anima version of the LoRA does not work without the triggerword.
Anima already can do Muk's style decently, the anima only improves on it slightly if you don't use any style LoRA, though it fixes the white border issues that the base model has with the artist, as I cropped every image with white borders to fix it.
It also allows for LoRA pairing, as the model looses artist knowledge when using style LoRAs.