Hi,
I have no idea if this fuction can be achieved by group policy.
But I think if you check this setting, your all documents will be opened using Draft view.
-
Launch Word Options by clicking on the "Office" button at the top left of the window. Click the "Word Options" button at the bottom of the menu.
-
Select the "Advanced" option to the left of the Word Options window.
-
Scroll down to the General section of the Advanced Options window and click to select "Allow opening a document in Draft view." All documents will now open using Draft view.