Animal rights activists aim to give animals basic rights and, as they say, release them from all “exploitation conditions”. That is why the movement or at least a part of it is called “animal liberation movement”.
Only superficial. Many animal welfare activists, like animal rights activists, for example, refuse factory farming, but animal rights activists do this for other reasons.
Of course you can also eat vegan, without adhering to the animal rights ideology. Presumably even the fewest vegans support the position of animal rights activists.
Like all vegans, they can not eat meat or other animal products such as eggs, milk and honey, and also no butter, milk chocolate, milk ice cream and egg noodles for example. However, there are many other rules.
Whether the cow is kept in intensive livestock farming or in a largely organic farm is irrelevant for animal rights activists. They reject any animal use.
Presumably, most animal rights activists reject violence as a means to achieve their goals. However, even the largest organization PETA explicitly does not dissociate itself from the militant wing of the movement and even acts as its public speaker.