@pwalshwaring The guide was saying create a new folder in the destination you want to use because it was written with the idea that people would be moving Documents out of the default location, for example to a secondary drive. Instead, you're moving it to a location where a Documents folder already exists. I'm actually surprised Windows let you have two Documents folders in the same location like that—you'd normally get an error, but perhaps some of the metadata is different.
For the second approach, the folder that encounters the issue is the Documents folder, and you're changing the registry entry for Personal (that refers to Documents) to this:
%USERPROFILE%\Documents
That's what the guide means by the default, as in, what the guide itself lists as the default setting.
I do want to say that if this is giving you too much of a headache, there's an easy workaround: create a new admin Windows account. If you don't link it to your Microsoft sign-in, the new account won't have OneDrive, and you could then just move your files to the new account and pick up where you left off. It's your choice how you want to approach this.
