Bayern Munich are already the underdog against Real Madrid in the matchup. They must be in their best condition for this tough challenge. 
I'm curious about another thing by the way. Let's say Tuchel managed to win the Champions League title unexpectedly. Then do you think the board would change their mind about parting their ways with him? 
If you think that Real Madrid will easily win Bayern Munic, then I will disagree with you because the Champions league is the only trophy the German Big boys is hoping to lift this season. Having lost the German Bundesliga to Bayern Leverkusen and also out of the German cup which is like also going to Bayern Leverkusen, Bayern Munic will fight tooth and nail to win the champions league, all though I am not saying they will win. Even Real Madrid knows the task ahead and will be preparing accordingly. If you notice, Bayern Munic have systematically improved, winning their matches and scoring more goals. All that are in preparation of the champions league match against Real Madrid. I'm curious about another thing by the way. Let's say Tuchel managed to win the Champions League title unexpectedly. Then do you think the board would change their mind about parting their ways with him? 
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We need that Guerreiro-Mazraoui left side vs Real Madrid.
Source: https://twitter.com/MunichFanpage/status/1784260867439067435I understand that the Champions League trophy is the most important for Bayern Munich at this moment. But when it comes to Champions League competition, Real Madrid is way ahead of any other club in my opinion. At this point, I think it almost does not matter the squad that Real Madrid has. Nobody gave them a single chance against Manchester City. But they were able to win. They had a plan and they were able to execute that plan perfectly. So I think it is really not a great idea to actually doubt Real Madrid against Bayern Munich.
But at the same time, this is the semifinal of the Champions League competition. So almost anything is possible in my opinion. I can say one thing for sure that this is not going to be easy for either team.