Paris Saint Germain will face Ajaccio which will take place in a while, this will be a win for Paris Saint Germain. Ajaccio is now in the relegation zone, and with the current strength of Paris Saint Germain it is clear the advantage is on their side. Paris Saint Germain are only a few away from claiming the Ligue 1 title and one of them is by winning this game. I have no doubts Paris Saint Germain will win this game, plus they will play as the home team in this game.
It seems that, even though PSG managed to win in this match against AC Ajaccio, but it seems that PSG still cannot celebrate winning the Ligue 1 title. Because in my calculations, it looks like PSG will celebrate winning the title this season when PSG will face Auxerre later. Yes indeed, even though PSG cannot be quicker to celebrate the title, on paper PSG will still win for the remaining matches, because the opponents that PSG will face are teams whose quality is not so good as to be able to beat PSG.
Therefore, basically PSG has been confirmed to win the Ligue 1 title this season. It's just that, the celebration might be a little delayed because to make the celebration faster, of course, you have to be sure about the scenario of the point gap which can no longer be overtaken even though you get a defeat.