Arsenal really need to take home advantage maximally to beat Bayern, while they are in good form and high morale. This is their best opportunity to progress the next round, because they will have to stay focus on their title race in Premier League. The second leg is still uncertain, because anything can happen. Pressure, fatigue or even injuries can come anytime to any team. The circumstance in the second leg may not be the same.
This can be a slight advantage for Bayern, because they may have given up their Bundesliga ambition, because it has become almost impossible for them to chase Bayer Leverkusen. While Arsenal have split focus, Tuchel will put extra effort on his only chance to get silverware in Champions League. He needs to capitalize this situation and boost the confidence of their players who have experience to beat Arsenal. While they have bad performance and potentially failed in Bundesliga, They are still the same players who have capabilities, experiences and strong mentality to performance at the highest level.
Indeed, for now not only for Arsenal but for anyone, surely the home game will be very influential and must be maximized properly because after all, with a good home game it will certainly make us more confident especially if we can immediately win with a high enough score.
But honestly for now especially when looking at what Bayern have done this season actually gives me high hopes for Arsenal even though it is certain that Bayern will try to do better because the Champions League is the only trophy that allows them to compete after the Bundesliga is hopeless again but with their current performance I am not too sure about Tuchel.
Indeed in terms of h2h Arsenal always lose but the difference is currently quite pronounced for Arsenal because they are changing for the better so I still hope that with a slick performance in the last few seasons for Arsenal to be able to achieve greater achievements including in the Champions League.