The CWC shouldn't be used as a benchmark, but with the improvements and results achieved in terms of trophies, including last season's Conference League and CWC trophies, Chelsea certainly has a slightly greater fighting spirit as they look forward to the upcoming season and correct the mistakes of previous seasons, which were devastated by geopolitical issues.
Of course, Chelsea is a better team than they were by this time last season; anybody will disagrees with that is wrong. What I mean is, I still don't see them a good enough to win the league. WHat they lacked most last season was consistency. They can play three straight matches where they would be very impressive, then they will have another three matches where they will be so horrible and get only one point out of the three matches. With that kind of attitude you will never be able to win the league.
In a very competitive season, back to back losses is not allowed if you want to win the league because it is asumed that the people behind you will get the six points in two matches and they might overtake you. Last season was not a competitive season and that is why Liverpool had the luxury of losing so many point and still winning because the team behind them (Arsenal) were not ready.
I see next season to be a very competitive season so the most consistent team will win. There will be very little room for error.