Today, Barcelona will face Brest and I think this match will be an interesting match between the two teams. Because although Barcelona is currently in good form in La Liga, how well Barcelona will perform in the Champions League will be proven on the field. Although we saw that Barcelona did not win that match in the last match due to the absence of one of their young players, Lamine Yamal, according to this, it may be difficult to win against Brest in today's match. Moreover, Brest is currently one of the strongest teams in the Champions League, and they are undefeated in the fourth position in the points table. However, the bookies have given the victory of this match in favor of Barcelona, and besides, the game is at Barcelona's home ground, so they have the possibility of winning.
Since Hansi Flick needed Lamine Yamal for important games, they didn't want to take a risk and didn't play him in the previous league game. I looked at Barcelona's starting lineup and saw that their star boy will not play today, perhaps he is not yet healthy enough to participate. Since their attacker appears to be weak anytime he is not available to play, I believe it is time for the Barcelona team to do their best to win games without Yamal. Barcelona can score goals, so I believe that my prediction for the game will be over 2.5 goals.
I believe this will be a difficult game for both sides; Bayern Munich has a solid record against PSG, but the new Champions League system may change things this season. PSG only got four points in its previous four games, and I am confident that they will not allow Bayern Munich to win the game at home. Kompany's record in the Champions League is unpredictable, they struggle to score against any opponent, since Bayern Munich scored seven goals against Dinamo Zagreb, they have never scored much goal in the Champions League. Even if Bayern Munich wins, it will be a difficult match.
I think Bayern are stronger than PSG now, yes they have been unlucky in the last few matches of the Champions League, but this can't continue forever, they dominated the match against Aston Villa and should at least not lose, something inexplicable happened with Barcelona, and both of these matches were away. Bayern do not lose at home, so I think that at least they will not lose, and PSG attack does not play very well in the Champions League, so I think they can beat Bayern, it will be either a draw, or a win for Bayern.
You're right that Bayern Munich hasn't lost any Champions League home games, but I thought they would score more than one goal in their last match against Benfica. Only one goal was scored by Bayern Munich during the match, and I had assumed that they would score a lot of goals to make up for the humiliation they suffered against Barcelona. Furthermore, even if they haven't performed well in the Champions League, we shouldn't underestimate PSG players given how they are dominating the French League. If Bayern Munich defense doesn't let the PSG attackers rest, they might win the match.