Dear DVA,
Good day!!
Apologies for the inconvenience caused and please don’t worry, let’s work together on your concern and move towards a resolution path.
I understand your concern and I would like to convey that I have tested the behavior in the latest version of the Word application on the Current Channel, where I noticed the style for the number one is as below:

Note: I see the same behavior in the Word documents in the Word for the web.
If you are also seeing the same behavior as the above screenshot, I would like to request you report the behavior to the related Word development team via adding the feedback in the Word app which is the best way to bring the direct notice. Reference: How do I give feedback on Microsoft 365? - Microsoft Support
In addition, I will keep this thread open so that Word MVPs and experts in this community can share their ideas on your concern.
Moreover, if there is any misunderstanding from our end, we apologize and request you to share the more details with some screenshots for better understanding and guiding you further.
Appreciate your patience and understanding. Have a great day!!
Best Regards,
Sophia