Bayern Munich were quite disappointing in the Champions League last season. Actually it has been the case for 3 seasons. They were the champions in the 2019/20 season. But since then their biggest success is to reach the quarter finals. In one of these seasons they were even eliminated by Villarreal surprisingly.
It looks like something needs to change really much for them to do better here. Tuchel might be the one to make this happen maybe. He was amazing by winning the Champions League with Chelsea in his first season already in a time that they weren't given much chance for this achievement.
Of course this was a really difficult task. But now Tuchel will have an even more powerful squad in his hands. It is all up to his managing to work his system with this team from now on.
Bayern Munich certainly has to change a lot and improve the quality of its team if it wants to regain its glory in the Champions League. The season has changed and so has the power of other big teams, that matter has increased the competition between the big teams so it will be more and more difficult to win the title. If in the previous few seasons Real Madrid was the top favorite to win the title, then Manchester City is the team that will be the favourite in subsequent seasons, especially after they won their first title.
Bayern Munich, PSG, Real Madrid, Barcelona, Inter, Napoli and several other big teams had to fight hard to win the title. Manchester City have done their best and have convinced many people that they can dominate Europe with their quality, but anything is always possible.