Hi @Gina Deysel
Based on my tests, we are unable to remove the icon. I suggest you submit the request on Microsoft Feedback Community.
Besides, you may vote up this thread: How do I get rid of the incredibly annoying "Draft with Copilot" icon in the left margin of Word?, uses replied in it has the same need as you, they want to remove the copilot icon in Word.
Thanks for your understanding.
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