Dell XPS 13 9315 screen flickering when using GPU

I noticed a problem of screen flickering on Dell XPS 13 9315 when installing the last gpu driver.

The driver is the following: Intel-UHD-Iris-Xe-Graphics-Driver_NHN93_WIN64_31.0.101.3301_A03.EXE

The problem arises when using GPU application (i tryied with VALORANT and The Sims 4, but i believe it could happen with any other GPU intensive app)

Everything was up to date, BIOS, and all other drivers.

I solved the problem and I'm posting here the resolution for other users who may encounter the same problem.

First install this dell app from Dell XPS 13 9315 support page:

Intel-Graphics-Command-Center-Application_0484N_WIN64_1.100.3407.0_A00.EXE

Then open the app, and click on the 4th icon on the left sidebar:

Go to Power (something like this), and set it like on the following screenshot.