If look at Bayern Munich's record, there is no doubt that CL will be their choice and priority
The reason is because they are used to the Bundesliga title they have won the competition for almost every season
Of course, the Munich management will want to get both titles. But it will be very difficult for them. Bayern Munich's attack has weakened somewhat after their main striker Lewandowski left the team. Now Sadio Mane is out of the squad due to injury. However, Munich managed to maintain stability in each match with their match strategy. But this consistency is difficult to maintain. The Munich team is only 1 point ahead of Union Berlin. If Munich drops a point in a match they will lose the top spot in the table. On the other hand, they also got a narrow 1-0 win against PSG in the Champions League. If they do not play well in the second leg, they will be eliminated.
@laurenB7742 I wouldn’t be surprised if they rested their main player’s for their league fixtures ahead of the champions league match, and to be honest it totally makes sense to do that. Furthermore if they had won by a big margin then it would have been a different story, but since they only won by one goal now they’ll have no option but to prioritise the CL match because they can catch up in the league matches later however they won’t get second chances if they’re eliminated from the CL.