Do SD models come with style embeddings already included?

I am new and still trying to wrap my head around a lot of this, but I found this link: https://huggingface.co/spaces/sd-concepts-library/stable-diffusion-conceptualizer and I am confused by some of the wording. The website makes it sound like they are already included in SD. Is that true? I tried using some of these in prompts with and without downloading the embedding .bin and didn't really notice any difference. Couldn't find any clear answer on Google either.