In my opinion, Dortmund is an easier opponent for Barcelona than Lille. Dortmund is a team without an exceptional defence and is very attacking. They concede a lot so that won't be a problem for Barcelona.
I don't think it will be a difficult match for Barcelona. Because Dortmund is not a strong team this season. Dortmund's performance is average. The squad is not very strong, nor is Dortmund's match strategy very good.
Barcelona is in great form with the help of Hansi Flick. This team has a good match strategy. At the same time, young players like Pedri and Yamal are playing well. Raphinha and Lewa are also in very good form. Barcelona does not have to rely on any specific player. We expect an easy win for Barcelona against Dortmund.