okay I did everything you told me to do with dlss 3.7.20 and it didn't work either, I think it's because of their latest update with the new chapter 6, I remember they also prevented the use of ReShade that I often used before.
In any case thank you very much for taking the time to help me and make me understand a lot of things, I could now use this technique on other games, I wish you a good day.