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