Chelsea is in improved form before the big battle with Arsenal. Chelsea has won 3 consecutive matches, including an impressive victory over Brighton and 2 gentle victories against Fulham and Burnley. But the Chelsea squad still needs to be adjusted. Arsenal is unbeaten in the Premier League this season, with 6 wins and 2 draws after 8 rounds. They defeated defending champion Man City with a score of 1-0 at Emirates home field. Therefore, victory for Arsenal in this match is natural.
Chelsea still have a lot of adjustments to make when facing Arsenal at Stamford Bridge, because in general Arsenal are still much better than Chelsea this season so Chelsea don't have to be arrogant and take the match lightly even though it takes place at Chelsea's home ground. Arsenal is very determined to take over the top of the standings this season, especially since the number of points is starting to be the same as the current leader of the standings, so Arsenal will be much more enthusiastic about playing matches at Chelsea's home ground.
I see this as a match between two teams that have a very significant difference in quality, Arsenal is a top team while Chelsea is a team in the middle of the Premier League standings and there is also clearly a difference in quality between these two teams, so indeed if we predict it realistically then Arsenal will win this match even though the match will be played at Chelsea's Stamford Bridge, I don't think it will have a big influence.
Arsenal's performance this season is really very good, all of this is inversely proportional to the Chelsea team, so I think there is no need for debate about this match, if there are no surprises then Arsenal will win and if Chelsea manages to win or hold Arsenal to a draw then that is a surprise big.