Carlo Ancelotti is highly appreciated in Real Madrid for having a total number of 162 matches with 115 wins, 24 draws, and 23 losses, as Real Madrid head coach.
He started his coaching job at Real Madrid in the 2021/2022 season and he has won many important trophies for them(Champions League, Super Cup, Copa del Rey and UEFA Super Cup) since he became the coach of Real Madrid.
We talked too much about Real Madrid's massive success with 5 Champions League title last decade but forgot that they need more than 10 years from the 9th Champions League title to a 10th Champions League title. They called it as a Decima and spent a lot of time, waited many seasons to win the Decima. The coach who helped them to win Decima is Carlo Ancelotti after many coaches before him, failed with this mission.
List of their titles in Champions League:
https://en.wikipedia.org/wiki/Real_Madrid_CF1955–56, 1956–57, 1957–58, 1958–59, 1959–60, 1965–66, 1997–98, 1999–2000, 2001–02, 2013–14, 2015–16, 2016–17, 2017–18, 2021–22
Yes, Real Madrid's journey to win many UCL trophies was indeed full of twists and turns, many coaches wasted a lot of time before Carlo Ancelotti took charge of the Real Madrid club, he is an extraordinary coach and was able to break Real Madrid's series of failures in the UCL. Apart from that, there is still Zidane who is also the Part of Real Madrid's success in the last few seasons are these two coaches who have recorded a good history for Real Madrid in the last 5 UCL trophies and they also recorded domestic titles for Madrid.
However, despite the many twists and turns of Madrid's journey in the UCL, but not as long as other clubs who are fighting tooth and nail to get this big trophy, Madrid is indeed the best club in Europe, no matter how many obstacles it has faced so far, it does not rule out the possibility that it is the best club. throughout European history and no club has ever matched him.