Basically, based on the odds that are currently available, it also shows that Bayern Munich is more favored to win than PSG. Also, if we consider about the head to head results that they have too, the reality is that when Bayern Munich plays against PSG, that Bayern Munich has a good dominance of victory. Moreover, so far PSG is still very weak to compete in the Champion League if we compare with other top teams from different leagues. Thus, it makes sense that Bayern Munich is basically more favored because after all, their position in the current Champion League standings still proves that Bayern Munich is still better than PSG.
Bayern Munich may not win PSG, let's not forget even the bookies allocate these odds based off their expectations and sometimes as a strategy to get more Gamblers on that pick, this is because Bayern Munich is managed by someone who isn't as experienced in the champions League as that of PSG, although I didn't want to see that as a complete bias for taughts but it's significant enough to consider, home advantage is another factor to be considered so let's not conclude just yet but go ahead with our speculations.