Fallout 4 FOV is pretty low for my likings. So Ive tried to change it with "fov x" command just like other bethesda games. Quickly realized that this only changed the FOV for my Pip-Boy.

Command should be like this:

fov x y

x : Pip-boy FOV
y : First person FOV

My personal FOV is : "fov 92 100"

Note: Command button should be under your ESC.

Hope it helped!