PSG are preparing to make their decision about Galtier already before the end of the season. This would be for their own sake as well honestly.
Because I also agree that he isn't the right coach for this team. There are much more experienced coaches with big teams out there. I would really love to see Zidane before anyone else honestly but I don't give that much chance to happen as well. Because Zidane must still have no intention to manage a club in Europe now. But if he can't take the France job then maybe he might change his mind. But I don't know if it will take PSG that much time to decide their next coach.
I usually see Zidane's name whenever we are talking about a new coach for PSG I think if they want to hire another coach the best thing they can do is to hire Zidane because he can have a good performance there since he is French and he good experience working with superstar players when he was coaching Real Madrid that's why PSG won't have unbalanced situation anymore with Zidane.