Until we see legal papers, she has no "right" or legality in any situation. If I want to create art of her borderline femboy self getting fucked I'm in my right to because she has no legal say so and it would just be morally right for me to not do so. If she wants to integrate outside of her discord hugbox, she has to follow the community "rules", and rules dictate vtubers tend to get fanart, fan merch and even fan creations like animations usually without permission and they usually make money on it, but it circles around to you being more known and sought after.