Hololens2 Unity App is displayed in a 2D Window (MRTK 2.8.2.0 Unity Version : 2020.3.28 f1)

Hi 

I have been trying to deploy to Hololens 2. 

But the app opens in a 2d window inside hololens. 

I am following the Hololens 2 fundamental tutorial here https://learn.microsoft.com/en-us/training/modules/learn-mrtk-tutorials/1-7-exercise-hand-interaction-with-objectmanipulator

Versions are MRTK 2.8.2.0 , Unity Version 2020.3.28 f1 , Visual Studio 2022 17.4 

I have been deploying it as a remote machine