On my system, the path is C:\Users\User_Name_Here\AppData\Local\Microsoft\Of fice. Also, note that officeUI is the filename extension. If you don't have those displayed, you will only see the filename Word.

And, yes, many customizations are stored internally with the Normal template. Keyboard shortcuts belong to that category. You can see them in the Customize Keyboard dialog box.

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Stefan Blom
Microsoft Word MVP

Microsoft 365 apps for business
Windows 11 Professional