Hi @pomme_frites22. Unlike Arduino IDE 1.x, the Arduino IDE 2.x installation does not include drivers. I see the outdated information in my Arduino Starter Kit book (but on the other hand I got it before Arduino IDE 2.x existed so that is to be expected).
I will check with the people in charge of the to make sure the instructions in the "Projects Book" are updated to be correct for Arduino IDE 2.x users.
The drivers are still available, just in a different place:
C:\Users\USERNAME\AppData\Local\Arduino15\packages\arduino\hardware\avr\1.8.6\drivers
I am surprised that you would find the need to install these drivers though. Arduino IDE automatically installs the drivers the first time you run it after a fresh installation.
Do you see a port for the Arduino Uno when you open the Tools > Port menu in Arduino IDE after connecting the board to your computer with the USB cable?