Guardiola doesn't have a good history against Tuchel in the Champions League. You must be remembering how Chelsea beat Manchester City in the finale of the 2020/21 season in this tournament. Tuchel did a really great work there although there wasn't much time passed since his arrival at Chelsea. Hence Tuchel can be really dangerous with Bayern Munich in this season as well. These managers know themselves very well from not only this tournament but also the English Premier League.
I expect a big clash of tactics in this matchup above all else. Bayern Munich might be a little more durable thanks to Tuchel compared to their previous version. But I still hope to see Manchester City eliminating them.
Guardiola and Tuchel faced each other in the Champions League before but a few weeks passed and these two coaches are not the same as before. Tuchel had some tactics in Chelsea and the tactics worked perfectly but we can't surely tell if the tactics will work on Bayern Munich or not. However, since Tuchel and Guardiola know each other I guess this time Guardiola got more chance to beat Tuchel because of their stable situation.