Chasing down a 0-1 deficit from Lazio doesn't seem like a tough task for Bayern Munich in the second leg. Bayern Munich is playing at home and they should have an extra advantage to win the second leg instead of losing or failing to qualify for the next round. Not sure Lazio can maintain their performance like the first leg, I mean Bayern Munich can be very strong at home.
I believe Bayern Munich can win their home game against Lazio. The probability of their victory is very high and this is a sign that Bayern Munich is believed to be the favorite in this match. It is difficult to predict the final result of a match, but as a team with high experience in the Champions League, Bayern are the best to qualify, in my opinion.
I agree with you that Bayern Munich is the favorite to win their match against Lazio tomorrow, and Bayern Munich is at home. Since Bayern Munich is playing at home, it is not certain that Bayern Munich will win against Lazio if they do not play nice football and create chances to use and score goals. Bayern Munich should score a goal early against Lazio so that they will weaken Lazio's morale to play good football against them.
Bayern Munich is clearly favourite for the home game against Lazio but still this is not guaranteed because their home performance is also not good, and they are facing unknown issues which are giving them setbacks in this season, and they are now trailing in Bundesliga by 10 points which happen after decades Lazio is surely not strong team and can face problems in their coming game but still things are never been easy for the Bayern Munich because they are having bad run and their players which are looking tired are fail to give their best in last many games.
But expectations are still high for their win in coming game because Lazio is also suffering into their last few games and their performance is also on decline which is surely not good deal for them before this big game which is coming in few days they needed to be at their best again if they are looking for the another win here in Germany after winning their first game at home.