Chelsea still have to prove how good they can be in the Champions League, despite the fact that they won the Club World Cup, no one took this tournament seriously, perhaps with the exception of the last playoff games, but the tournament still remains not very status. The Conference League, which Chelsea won, is also a low-status tournament and Chelsea had to win it, so in order for them to start being taken seriously, they need to play well in the Champions League, but for now it is too early to talk about their strength.
Overall, Chelsea is indeed a very strong team right now, but their prowess must be truly tested in the Champions League. As you mentioned, the competitions Chelsea have won are less prestigious. Although the Club World Cup is quite prestigious, it still pales in comparison to the Champions League in terms of quality and prestige. Therefore, I believe that if Chelsea wants to be noticed again by the world, they must at least reach the Champions League semifinals. If Chelsea can achieve that, their reputation will undoubtedly soar even higher.
However, considering the current situation, I don't think it will be easy for Chelsea to reach the Champions League semifinals. Teams like Barcelona, Real Madrid, Liverpool, Munich, and PSG will certainly not allow it to be easy for Chelsea. So, the bottom line is that Chelsea still has a long way to go, and the Chelsea players will certainly need a very strong mentality to overcome the challenges in the upcoming Champions League. So for now, we just have to wait until the Champions League starts. The playoffs aren't even over yet. Speaking of the playoffs, do you have any predictions for which teams will advance to the group stage? Personally, I hope Fenerbahçe makes it.