If Madrid does end up in the play-off, I don't think it will be a big deal, but it certainly won't happen.
Although Madrid current performance is inconsistent, I have this assumption,
Liverpool vs Madrid (draw)
Atalanta vs Madrid (Madrid win)
Madrid vs Salzburg (Madrid win)
Brest vs Madrid (Madrid win)
If all the matches are in accordance with this prediction, I am sure Madrid will be in the best position to advance to the next round.
Real Madrid met Liverpool it has a good victory but for this time do not know because of inconsistent performance and Liverpool is in glory with Arne Slot so it will be difficult to win as away.
Yes, maybe a draw is still very possible or it could be that Liverpool won this cannot be denied because Liverpool are on fire.
Against Atalanta, Salzburg, Brest, maybe the expected scenario is that Real Madrid wins because this team is more favored in any way, as long as they don't miss again like against Lille if they lose then they will enter the playoffs.