Hello.Trey_MK
Thanks for using Microsoft products and posting in the community.
I would be honoured to help check your question.
Before I answer your question, you need to give me some information so I can better pinpoint your problem.
What's the version number of your mac?
To use this feature, you need your account to be subscribed to Microsoft 365,
1.Check the subscriptions in the account
Open the https://account.microsoft.com/. Login to your personal account Click "Services & Subscriptions".
Scroll down to see if you have Mircosoft 365 or Office subscription.
Do you have a subscription for Microsoft 365?
If you have a subscription, please log in to your account to use Microsoft 365.
Also if you are logged in to another office account, you can remove Office license files.
How to remove Office license files on a Mac - Microsoft Support
Also I provide some old version of office for mac installer, You can try old office to see if there are any restrictions:
Update history for Office for Mac - Office release notes | Microsoft Learn

Best regards.
Petter.Y - MSFT | Microsoft Community Support Specialist