I wouldn't want to bet on either of the teams to win as they are both Inform and PSG seem to be prioritizing this game above that which they will be playing in their local league before the champions league fixture, although its very certain to a far extent they would win but I think their priority would be the champions league fixture ahead.

And PSG recent win is a boost for them as they achieved that without mbappe who happens to be a key player for them. Newcastle aswell have a boost in their moral due to their most recent wins and this will definitely make predictions really difficult as both teams seem very ready and strong enough to contend in the game well enough.

A better prediction I will suggest will be on the number of goals, since both teams stand very prepared it will be a hard one for them both as neither of them will be willing to give the other an easy play so the number of goals to be scored in that game may most likely be minimalquote]
I think the match was quite tough for PSG because they had to travel to St James Park stadium in their second match in the Champions League. Newcastle United is not a weak team because they were able to stop AC Milan in the first match to get full points, so PSG looks like they will have difficulty getting 3 points in this match.

Currently, Mbappe is injured and it looks like this will affect PSG performance in this match. If Mbappe has not recovered completely before this match starts then this could be a big loss for PSG. I think Newcastle United is slowly showing good performance in their game this season.  I hope Newcastle United can win this match because if they succeed, the competition in Group F will definitely be even more exciting.