I actually think that Real Madrid is such a good team when it comes to the Champions League competition that they make it look easy sometimes. Whenever they are playing a Champions League match, it is expected that they will perform incredibly well against any team. Nobody should actually think that the Champions League competition is easy for Real Madrid. After all the Champions League competition is the biggest competition in the world of football right after the World Cup in my opinion. And definitely the biggest club competition in the whole world.
I actually do not think Manchester City is going to be better than Real Madrid in this season's Champions League competition. Because Real Madrid will have Mbappé. And the attacking positions, specifically the striker position is the biggest problem that they had. I think Mbappé will fix that problem. Even though he is a left-winger, they will probably play him as a striker and Vini jr is going to be on the left wing.
Some people even call them the kings of the Champions League because when they did it it looked easy and managed to record 15 Champions League titles. It's not surprising that they are the favorites in the Champions League because they can do it well. Actually, their game is normal, I mean their strategy can be read. They will wait and won't hold the ball much, but when the opportunity arises they won't waste it and can immediately execute it into a goal. They are very effective when attacking. We can see from the match where they beat Manchester City in the penalty shootout last season. They even lost a lot in terms of ball possession, but they managed to overwhelm Manchester City.
Ancelotti is a very smart coach, he is a simple type of coach. What he implemented was that as much as possible the players could play very effectively, they should not miss the slightest opportunity, and that was very successful.