From the last few seasons Bayern's performance in the Champions League is not very good because they have always been eliminated in the quarter-finals for the last 2 seasons especially now they are behind on aggregate over Lazio, but that also does not mean they cannot qualify again this season because their chances are still very much there, it's just that this is a little troublesome where Tuchel is still unable to maximize Bayern's strength with the scheme he provides so this makes a difference where even a big chance in the end will not be able to make a difference between this season and previous seasons.
For the Bundesliga Bayern Munich were still quite dominant in the previous few seasons, even though they recently lifted the trophy in a difficult way. This season the presence of Leverkusen changed everything and Bayern Munich became the team that was not the favorite for the Bundesliga title. Leverkusen's dominance is still so strong that Xabi Alonso's team is unbeaten and they play much more consistently than Bayern Munich as the king of the Bundesliga.
Bayern Munich is not much of a favorite right now because of some of the disappointing results they have had in previous matches. Lazio's aggregate is not big and maybe Bayern Munich can make a comeback in the second leg because the match will take place at Bayern Munich's home ground. Now it depends on Tuchel and how they can get a win in the second leg, as people say that Tuchel is not the right coach to handle Bayern Munich now.