I also said that not only Man City some other teams like Liverpool Munich Milan PSG and Arsenal are giving a tough time to teams. But lets wait for the starting of UEFA Champions league 2024/25 season.
The next season champion league tournament will be a very tough one then this season due how so many clubs are prepare for the next coming season, apart from the Manchester city there so much teams that are are going to be tough as you mentioned them earlier expecially, a team like arsenal I'm expecting a good outcome from them. Because since there able to win the champion league this season; they want dominate the entire next coming season, and in my view arsenal can make that happen with how they improve their performance better, But nevertheless let us be wait and see what can actually happen in UEFA Champions league we can't make an early predict.
Well this is a common thing as I believe every season the teams do prepare for the next one ahead so I believe there is no special thing about this. The moment the seasons end every team will try as hard and possible as they can to actually make their team stronger and that's what all the teams are doing now, well for Manchester city the market is not yet over so am still open to see a new addition to their squad.