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.
I think the new players brought in during this summer's transfer window will need time to adapt and find a sense of alignment with the game. Ekitike did contribute a goal in his debut match, but Liverpool had to admit that Crystal Palace were too difficult to beat, leading to a penalty shootout. Ekitike is still young, and I think he will be a striker who will make history for Liverpool.
I wouldn't consider Liverpool's failure in the Community Shield final to be a benchmark for inconsistent performances this season. Arne Slot knows how to manage a team well; I think he has a better strategy for developing the quality of his players, especially the new signings he made during the transfer window.