Oversaturated look in borderless windowed mode

Good morning all !

I am explaining to you my problem to which I have not found a solution since I changed my computer.

When my game is in full screen, no worries. In windowed mode, the same. But in borderless windowed mode, the game mode I use on all games, my monitor colors change and it's very dark, very saturated.

I had already encountered this problem before, and I had found the solution to change a line of the client_settings in the appdata (AllowColorRemapping: false) which worked so far, but since reinstalling the game on my new computer, the line in question in the document did not exist. I added it myself, but nothing helps, the colors are still the same. I wanted to try a repair of the launcher, but the option is greyed out 'The repair option activates when the game update is complete or when errors are detected during the update installation. '
It's very unpleasant, I thought I was done with this story :\

Anyone have a solution?

Thank you in advance !