They have secured a position and indeed no one will be able to pass them now especially in this last match they will face a fairly easy opponent on the other hand it is very difficult for Freiburg now apart from their opponent is Leverkusen they also must not lose points here because they are still it's not safe to be in 5th position, it's their determination to also secure 5th position no matter what happens
Well, I think they already secure the 4th position that is for sure, I really want Leipzig to further go up but Leverkusen got 61 points to Leipzig 57, even if RB Leipzig wins against Arminia it is not enough to secure them in the 3rd position, and I think Leverkusen is secured in the 3rd position 1 match is not enough to beat their score, so Leipzig will need to wait for the next season, and I think next season will be promising, Dortmund's Erling Halaand confirms to be with Manchester City and Robert Lewandowski is not in good term with Bayern Munich right now,
It's too late for Leipzig now and it doesn't really matter whether it's third or fourth, the most important thing is that they have to be in that position to be in the Champions League zone next season. as for in this case I think a draw is enough for them to secure 3rd position in this last match but it would be better if they won.
for Freiburg they have to win so they can advance to a more prestigious stage, namely the Europa League next season