See How to Find the Normal Template. That describes how to find the user templates path in any version of Word on any computer OS, I believe. That is by, in the Visual Basic immediate window typing:
debug.print application.NormalTemplate.Path
You could code to find the same thing.

The default location of the User Templates Folder remains:
C:\Users\user name\AppData\Roaming\Microsoft\Templates.
If you are trying to program something, do not depend on that being the actual folder.