I am not sure how to achieve what you are desiring.
There is a drop-down menu which includes Ribbon Preferences ... at the far-right side of the second layer from the top. Check if these options can achieve what you are wanting.
There's also the toolbar drop-down View menu options. Firstly Ribbon, then Toolbars and then Customising Toolbars & Menus.

and Ribbon Settings:

I'm using quite an old version of Word but it suits my basic needs.