Is there a way to adjust the FOV of the screen seen on the computer?

When I run the '.exe' file built in Unity, the screen that appears looks too close than inside HMD.
But, we think running a separate app is cumbersome.

Is there any Unity options or a way to change the FOV on the computer screen?

( I am not trying to adjust the FOV of a VR camera, but I am referring to the screen displayed on a computer. )

Thanks!!!!!!!!!!!!!!