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.
You are wrong if you say Bayern are not too favored in this match because even though they are still unstable in terms of performance and still behind 1 goal on aggregate after the first leg they lost but for the second leg to play at the Alianz Arena it is enough to make them the current favorites.

From the current odds, it seems that we must understand what is happening where 1.28 versus 11 for Lazio in terms of odds makes us know that they are very favorite in the match later and it is a fair thing if we see the current conditions.
Bayrn's strength is still much greater in terms of popularity and individual player skills when compared to Lazio. In addition, they also still have the advantage of playing home in the second leg and that will definitely increase their enthusiasm especially with the target they want to do this season of course they understand that they have to make a comeback and win later.
Yes, that's right, more precisely, Bayern Munich's defeat in the 1st leg was just Lazio's luck and in the 2nd leg, as a popular club, Bayern Munich will not make the same mistake and don't want to be embarrassed at home.
In terms of player quality, we all know that Munich is still superior and on the one hand, the match at home has a big influence because the Bayern Munich players will be much more confident and it is not surprising if the bookie gives small odds and favors Bayern Munich because Munich has already won get a guarantee in the 2nd leg match.