As good as Arsenal are, I don't think they will ever underestimate the opponents they will face. Even though Chelsea has a less consistent performance but they will play at home and I think that will be an advantage for Chelsea. In spite of this, Arsenal will remain the favorite because they have a more promising performance than Chelsea, but I don't think it will be so easy for Arsenal to beat Chelsea just like that.
If Chelsea faces a big club, maybe their performance will not be so bad and they will be able to provide resistance. Because this will be a prestigious match for both teams. Playing at home is Chelsea advantage so there is no reason not to take advantage of this moment. For Arsenal, they are ready to play at home and will not put pressure on Arteta squad. The mentality of Arsenal players who continue to improve and develop after beating Manchester City is certainly a motivation to continue to maintain their victory.