We know Dortmund are more experienced in this competition and because of that they are not an opponent to be underestimated. Even PSG's size certainly won't be able to win easily and instead Dortmund will put pressure on them. I think the difference in squad depth will not apply in the Champions League and the most important thing is the mentality of each team itself.
Dortmund proved to be the champions of the hellish group at the start of the season and stopped other strong teams such as Newcastle and Milan. Now they will face the same opponents as in the previous group and I am sure they will have no problem getting a ticket to the Champions League final.
Terzic and Luis Enrique both have experience in the Champions League, I think both of them will do their best so that their team does their job when these two teams meet in the semifinal match. for me, PSG has an advantage because they only focus on this competition. in Ligue 1 PSG can be said to be more relaxed, because they are almost certain to retain the League title.
meanwhile for Dortmund, Edin Terzic's squad must focus on two competitions at once. are in 5th place in the Bundesliga, making their position in danger of not participating in the Champions League next season, especially if Dortmund loses during home or away matches. thus, it will worsen Dortmund's performance this season.
However, that doesn't mean that Dortmund will easily be overthrown by Paris Saint-Germain, because after all, Dortmund has a chance to overthrow PSG, especially since the first leg will be held at Signal Iduna Park. In fact, the two teams met in the group phase, and Dortmund won Group F. In this match, Paris Saint-Germain started to be different, their game started to become structured and aggressive. So it's very natural that even though in the first leg Dortmund played at home, PSG was slightly superior in the meeting between these two teams. I favor PSG more, but we'll just have to wait for the battle between these two teams to take place.