Being one point behind Bayern Munich is very vulnerable to being overtaken by Bayern Munich, this is where mentality is needed and Bayer Munich has proven it so far but not Leverkusen. It is true that currently Leverkusen has recorded an unbeaten record in the Bundesliga, but this cannot guarantee that they will be consistent at the end of the season because the Bundesliga is still very long, there are possibilities that undesirable things could happen, such as players getting injured or players being tired.
Moreover, we know that this season Bayer Leverkusen will also focus on the European league, of course this will make it even more difficult for them to be consistent because their players are limited, meaning their players are not as good as the main players. This is different from Bayer Munich, they have complete players even though they play in the UCL league, but they are experienced in dealing with busy schedules. But whatever it is that will be a factor in winning the Bundesliga, those who are good at maintaining the players' fitness
All these factors you think will affect Leverkusen are likely to affect Bayern Munich as well because they are all players that might go through the same process of regular playing and might all get injured. Bayern Munich will only have the experience of being a big team, but in terms of player quality, they are not the same, but Leverkusen have quality players that can compete for the title. Only the AFCON competition, I think, will affect Leverkusen most because one of their key players, Boniface, will be going to his country's duty to represent Nigeria; he is a special player in the team, which is why it may affect them, but that is not also a challenge because they surely have his replacement. This same AFCON will also affect Bayern Munich.