Arsenal even currently has the same number of points as Liverpool. So they are currently at the top of the standings without any comfort. Because Arsenal leads the standings only because they have an advantage in goal difference compared to Liverpool. Liverpool's condition of always having injured players seems to have become a habit that Klopp faces. And Klopp can always handle it. And Pep is the same. Pep has always been able to maintain Man City's performance even though several of their important players have suffered injuries. So Arsenal cannot afford to be careless at this time. Arsenal must continue to fight harder to maintain their position at the top of the current standings. Because just one defeat or even one draw is achieved by Arsenal, this has the potential to throw them straight back to 3rd place.
The pressure put on by Liverpool and Manchester City is very big and Arsenal is not a team that has a good mentality so currently they are the leaders of the Premier League standings with the same points as Liverpool and a difference of 1 point with Manchester City is not an advantageous thing for them in fact. currently they are increasingly depressed.
Last season should be a lesson because last season Arsenal were in a position like this but they failed to maintain their top position and if Arsenal can learn from last season it shouldn't happen again but I doubt it.
Arsenal is leading, but they have no gap from Liverpool and are only 1 point ahead of Manchester City, therefore you are right that Arsenal will not be comfortable at all even though they are at the top of the standings at the moment. Mentally, I think Manchester City is better than Arsenal and don't forget that they will still meet in Week 30, or in the next 2 weeks. This match will be very decisive for Arsenal and Manchester City because the results of the match will really determine their position in the standings.
Arsenal will play as the visiting team in that match, and that will be a burden for them. Manchester City could have an advantage in this match and it seems I would prefer Manchester City as the favorite. I'm curious what Mikel Arteta will do in that match, whether they will try to be careful and just aim for a draw or will they come out attacking to win the match and increase their chances of becoming champions this season. We never run out of tense matches in the Premier League.