PSG have already to collect 3 points which these points PSG got when they beat Girona in the first match and the loses from Arsenal makes they situation not comfortable because now they have to hard struggle to gets the winning results if they want to qualified and Salzburg and PSV probably the weakest teams for PSG so they should be able to collect 3 points from these teams
Indeed Manchester City and Bayern Munich is the strongest opponents for PSG because if we see based from head to head statistics PSG during against these teams they have poor records and assuming PSG lost from Manchester City and Bayern Munich but if they can win from PSV, Salzburg and Atletico Madrid i think PSG still have any chances to finish at top 8 but this is only my prediction and most likely it can be missed
PSG have difficult position for qualifying directly to knock out round after collecting three points from two matches, defeated by Arsenal last match make PSG have secure all three points on six matches left exactly have three difficult opponent teams from facing Atletico Madrid, Bayern Munich and Manchester City. New format make difficult for every team reach the top eight position standings get qualify to knock out round and PSG waiting by most difficult opponent team on six matches left later.
In my opinion, facing PSV, Salzburg and Stuttgart seems have opportunities for securing three points but I doubt when facing Manchester City, Bayern Munich or Atletico Madrid will be most difficult opponent teams and doubt with PSG will easily get three points. PSG must securing three points on upcoming match against easily teams PSV before facing difficult teams.