Thank you for reaching out to the Microsoft Q&A Forum.
I understand it can be confusing when Word and OneNote don’t respond as expected while you’re typing on your Mac.
Here are a few steps you might want to try to see if they help resolve the issue:
1.Turn off Mouse Keys and Full Keyboard Access.
You can refer to these articles for more details:
Control the pointer using Mouse Keys on Mac - Apple Support
Navigate your Mac using Full Keyboard Access - Apple Support
Note: Microsoft is providing this information as a convenience to you. The sites are not controlled by Microsoft. Microsoft cannot make any representations regarding the quality, safety, or suitability of any software or information found there. Please make sure that you completely understand the risk before retrieving any suggestions from the above link.
2.Restart your Mac in Safe Mode, then open Word and OneNote.
You can refer to this article for more information: How to use a "clean startup" to determine whether background programs are interfering with Office for Mac
3.Reinstall the Word and OneNote apps.
You can follow these articles to reinstall:
Uninstall Office for Mac - Microsoft Support
Download, install, or reinstall Microsoft 365 or Office 2024 on a PC or Mac - Microsoft Support
If the issue still persists, please share a few more details so I can better understand your situation and provide more accurate guidance:
-Does the issue also occur when using Word or OneNote on the web?
-Which version of Word and OneNote are you currently using?
-Did you recently update Office to a new version? If yes, did the issue start before or after the update?
Please understand that our initial reply may not always immediately resolve the issue. However, with your help and more detailed information, we can work together to find a solution.
I look forward to your update.
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