A family of Microsoft word processing software products for creating web, email, and print documents.
Below is an example of what is shown on the screen in a perpetual (non-subscription) version of Office. The Quick Access Toolbar which is part of the title bar by default includes Undo, Redo, Save and AutoSave. You can customize the QAT or you can hide it if you don't want to see it at all. My personal preference is to show it below the ribbon.
On the right hand side there are buttons for Comments, Editing and Share. The Editing button dynamically changes if the document is tracking changes, for example. These buttons cannot be customized.
What would help is if you upload a screen shot that illustrates what you see in your Word installation.
You may see additional options for Copilot, and you may see options for Office Predictive Text and/or Windows Text Suggestions. At least Text Predictions and Text Suggestions can be turned off.