You definitely don't need to know all of this in order to be a good frontend developer. There's plenty of "core skill" that isn't really covered here, and that's probably what interviews should focus most on.

I really like this list because it exposes many of the "corners" of knowledge in frontend work. Many of the questions expose things that I don't know and would like to know, or questions where I only have a vague answer and would like a more confident answer.