Unreal Application runs in Window mode inside the Quest 3..

Hello!!

im creating a simple floor cube and a sphere to test my scene on my Quest 3... i am testing directly from Unreal (5.3.2) it cook, build, deploy and run successfuly my application, but when i put my Quest, i see my game running in a window rather than inmersive mode..  I tried then building apk, then deploy it using Meta Quest Developer Hud, but same happens..

An image as illustration of what i see:

My setup:

I exactly followed this tutorial : 

Unreal Engine 5.3.2 for Meta Quest VR | Epic Developer Community (epicgames.com)

i'm using Unreal Engine 5.3,2, Windows 11, USB connection between computer and quest3...

Any help will be very aprreciated..