Bayern Munchen has shifted their full focus in the Champions League now that they don't stand a chance to win the Bundesliga this season.This makes me think that they can crush Lazio in this second leg as losing here would be a really bad move and all this season would go in vain for Bayern Munchen.I think they are more than capable of beating Lazio and I am highly confident that is exactly what is going to happen in this second leg.
Because Bayern Munich has a very small chance to win Bundesliga trophy, it makes sense if they want to focus on UCL matches now. Although Lazio is leading the aggregate with 1 goal, it is not so difficult for Bayern Munich to qualify for the next round. Bayern Munich only need to score 2 goals and they must have no conceded goal in the Leg 2. As long as Bayern Munich can play with full team, I've no doubt if Bayern Munich can be the favorite team to win the match and qualify to the next round. Moreover, we will see the match to be held in Bayern Munich home. And the win is a must for Tuchel if he still wants to stay with Bayern Munich until the end of the season.
If we take a look the squad quality, Bayern Munich should be better than Lazio. Lazio is only a middle-class team in Serie A . They are in the 9th place in Serie A, they also become one of the teams which have many conceded goals. So, actually Lazio doesn't have a really strong defense, Bayern Munich attackers must be able to destroy their defense.
Lazio stats:
https://footystats.org/clubs/ss-lazio-463