For the Bundesliga, right now Bayern Munich is actually going to win it without any doubt this season because the point gap is much for Bayern Leverkusen to catch up with, Leverkusen hasn't been in that sparkling form they were in last season that made them win the league, it would have definitely been a different ball game if they were in same electric form.
Leverkusen's biggest mistake was just letting Munich draw 2x meetings this season. That's why Munich currently looks very convincing to get the title this season. While behind a few more matches and Leverkusen's chances are no longer there to be able to catch up with Munich's points. Maybe the result would be different if in 2x meetings this season at least Leverkusen could beat Munich 1x.
Aside from their bad start, Leverkusen has done quite good this season, and it is true if Leverkusen won both Bayern games, they would have been doing much better, but if we consider how both of those games were ties, that means nobody gained an advantage there, and Leverkusen did badly in other games instead. This means that Leverkusen would have been doing better if they won both of those games but they would have been better if they won as much as Bayern did against other teams as well.
UCL is a big one for sure, not about like anything further than this matchup, whoever wins could end up losing next stage, but beating each other here will be very very important for both teams, and I bet they will play that game with 100% for sure.