Liverpool should be the number 1 club when it comes to teams to compete for the title but it doesn't seem that way to me. The way and manner they handled the game against Palace is the best way to say they are not ready and they're going to get some backlash from rival fans if their new signings are not up to the task especially Hugo Ekitike. That aside, you made mentioned of the clubs to disturb for the title and I don't think Newcastle should be taken seriously, the others can be Arsenal included, I feel they might repeat same thing they did season before and after, hope not. I can still go for Manchester City because they know the right time to striker without the other clubs knowing what hit them but you see the Gunners, it only takes the grace of God to see the Arsenal team winning the title.
In the last few seasons, we've seen that Arsenal simply need consistency to win the title. The strength, depth, and strategy of their squad, along with manager Arteta, are excellent. Last season, Manchester City lost several consecutive matches, and that wasn't just luck, but a result of Arsenal's immense strength. The problem is, this team sometimes experiences inconsistencies in one or two matches (not many), which results in them dropping points and falling just short of the leaders. So, I'm confident Arsenal will remain a strong contender.
As for Liverpool, I'm not sure if they'll remain the same as last season. Their squad has changed slightly. And I think their style of play has even changed slightly, judging by their recent match against Crystal Palace. So, I think we should reserve our judgment on this team. I don't think we can be certain about Liverpool's performance yet.