Well, Real Madrid has the opportunity to get into 8th place if they win the match against Brest today. But Brest doesn't seem like an opponent that will be easy to beat. Moreover, in today's match Brest is also the host. I even tend to think of a draw for this match. But Real Madrid will probably fight harder because this is a good opportunity for Real Madrid which could even have a chance of not having to go through the play-offs. As long as one of the teams currently ranked in the top 8 loses points in today's match.
Brest in Ligue 1 is actually going through a difficult time. Because they are currently only ranked 8th. In contrast to Real Madrid, which is currently at the top of the Laliga standings, so favoring Real Madrid seems to make the most sense for this match.
Not everything in the last round will depend on Real, even in case of victory they can remain outside the top 8, although it seems to me that the probability of this is not so high, and for this several factors must coincide. All that is required from Real is to beat Brest, I think that they can cope with this task, and of course Ancelotti would like to avoid additional games for his team, because their schedule is already full.