Thomas Tuchel will try his best to improve his team's performance in the second leg. He has made a mutual decision to terminate his contract with Bayern Munich at the end of the season, so he must make this final season special.
Bayern Munich don't have a good chance of winning the Bundesliga title this season, but they still have a chance to go higher in the Champions League. Lazio of course has the advantage after winning the first leg, but Lazio will have a big challenge at the Allianz Arena in the second leg and it won't be easy. Bayern Munich has a big chance to win the second leg, they will perform optimally later.
Tuchel has received confirmation from Bayern management, where the club top officials have agreed to end cooperation with Tuchel when the season changes. In this case, Tuchel considers that this decision has freed him to move, without being afraid and feeling pressured when experiencing bad results, but of course he will be more willing to take risks and experiment in determining the starting XI to achieve the best results.
The second leg will take place at the Allianz Arena, where all teams will feel pressured when they visit there, including Lazio. I think Bayern can turn things around and will progress to the next round, Tuchel has all the attributes needed, and he has a goal machine in Kane. Tuchel has experience of winning the Champions League, and is used to the various pressures and challenges faced by his team.
On the other hand, amidst high expectations for Bayen who can turn things around, Lazio could make another surprise. Anything is possible, but in my opinion victory will tend to favor Bayern, because Tuchel also wants to maintain his reputation manajerial in recording wins in the Champions League.