For now, Arsenal has a chance of winning above 45% as hosts and Bayern Munich 27%. I think it is worth noting Arsenal's level of seriousness in welcoming Bayern Munich to the Emirates Stadium.
Honestly, this still makes me not sure who will win in the first leg. However, because Arsenal is the host of the first leg, Arsenal should be able to optimize all chances of winning. Because home matches usually really help the club to perform and compete more optimally. It's just that Arsenal shouldn't be as bad as they were during the preliminary round in round 16 yesterday, which in fact we could say wasn't great against Porto, who weren't even able to play optimally in the home match. Because, here, their opponent is Bayern Munich which is certainly much stronger and more solid than Porto.