What prove do we have that Chelsea is very strong to the point that they can win UCL. Winning PSG in the CMC finals is not a guarantee that Chelsea have improved and stronger than the rest clubs that will participate in the Champions League competition. Don't forget that other clubs too have become stronger than before.
Yes, Chelsea have really improved and this year they can return to the ranks of the big clubs in the Premier League and in Europe. They have amply demonstrated this and are still demonstrating it. I, on the other hand, think that Paris will suffer a regression, citing the team they beat.