It would be better for Tuchel to be fired, not because he is unable to give his best, but because the demands of this season alone will be tough, winning the UCL trophy is certainly not a guarantee that can be obtained easily. The Bundesliga potential is clearly far behind Leverkusen. For this reason, Bayern Munich officials who want trophies from club conditions like this should look for a new coach. Tuchel is too burdened with big responsibilities even though he has only played 2 seasons. Rather than forcing opportunities without supporting player consistency, it would be better for Bayern Munich to leave and let them reassemble this team.
Tuchel will leave Bayern Munich at the end of this season, but if Bayern Munich fails to recover against Lazio in the second leg, it is likely that Tuchel will leave Bayern Munich sooner because he will be fired.
Bayern Munich in the Bundesliga certainly has no hope of getting a trophy because Bayer Leverkusen has appeared strong from the start of the season until now and is still consistent, Bayern Munich's chance of getting a trophy is currently only in the UCL league. So you could say that the second leg of Bayern Munich vs Lazio will be a gamble for Tuchel's career at Bayern Munich. So far, we know that Bayern Munich always gets a trophy at the end of the season, but under Tuchel's guidance, this season Bayern Munich has the potential to end the season without a trophy.
This is quite possible because the Champions League is the only trophy that Bayern Munich can achieve. If this fails, of course Tauchle will be fired or even leave on his own, there is nothing to hope for in the remaining matches this season.
Personally, I still quite believe that Bayern Munich will be able to turn things around in the second leg, there are many reasons that make me so confident, especially that Bayern Munich will play at home and the quality of Bayern Munich is much stronger than Lazio.