You are not alone on this, I also do not think that Liverpool will complete for this season's English Premier League title. They have been in competition for this title for some time now and in the just concluded season they were major contender for the title but it was unfortunate that they meet at in the 11th hour with Arsenal. That was just a complete team with an experienced coach with a long track history of success in the club. But now that some of the team members of the club will be should missing and a new coach in place with new ideology and relationship. I think they will not be contenders this season. However, they will still make top 4.
It is logical to think so after Liverpool lost their coach Klopp after many successful seasons under his administration. A new coach will have his own challenge to struggle in a new club so success in a first season has minor chance to happen. Slot can help Liverpool to perform well and maintain their position in top four of Premier League, but it's unrealistic and almost impossible to compete for the league title against Manchester City and Arsenal.
Football always has space for surprise and underdogs to succeed but probability for it is very small.