In terms of meeting record, AS Roma doesn't have a good meeting record in the last few seasons when facing AC Milan, but that doesn't mean they won't be able to beat Ac Milan. If you say they can beat Leverkusen, why do you say something different, you even say it's impossible for them to beat Ac Milan? because after all, this match has not yet been played and when it is like that, the opportunity for AS Roma is still quite open, although I also agree in saying that their opportunity is not bigger than AS Roma.
I fully support your opinion because in this european league anything can happen because of the european league title which makes all the players very enthusiastic about putting in all their performance to get a title they can be proud of and on the one hand all the players in this competition will definitely try to score each other score to get a great reputation that will give new history to the players.
even though in terms of H2H Milan are very favored in this match, the fact is that after the new coach arrived, Roma performance has improved very significantly and currently in domestic matches Roma is able to get very consistent results without being defeated.
from this very high increase in performance, Roma of course has a big chance to beat Roma because in terms of squad depth, Roma is currently very ready to become a strong challenger in the european league, in fact Roma could become an unexpected team, as was the case with Sevilla last season, which often ignored last season.