I am still fairly confident that PSG will dominate Ligue 1 again in the new season. Even though they don't seem to be making many new player transfers at the moment. I read that Stade Rennais has spent the most money in Ligue 1 during the 2025 summer transfer window. They have already spent around €26 million to sign Jeremy Doku from Anderlecht, even surpassing PSG. It seems that Stade Rennais' spending is an effort to qualify for the Champions League, and they are not hesitating to invest aggressively to pursue high achievements in France and Europe. Last season they finished in 12th place. I can't predict, but maybe they can pull off a surprise.
Yes with how strong their squad is built, I don't think any other team in the Ligue one would dominate the league for a while, PSG would continue to dominate until more big investors come into the Ligue and buy more clubs then invest heavily on them to match the strength of PSG. Which of the Jeremy Doku are you referring to mate? Cause the one I'm aware of is a Manchester City player and he's still in the club, anyways no matter how Stade Rennais invest heavily on players, I don't think they'll be strong enough to match the strength of PSG yet. They'll have to get a coach in the standard of Enrique and sign the quality of players PSG signed.