Why can't I save some editor config settings to the local file?

Question

Looking at this question: How can I use a file-scoped namespace declaration in a class template?

The answer shows an example:

But when I add a file "Editor Config(.Net)" to my project it doesn't look the same:

1. many settings are hard-coded to Location = Visual Studio Settings
2. the severity options do not match that screenshot at all

I am also using VS2022 like the other question (Pro version in my case). What is going on? There's no point me adding a .editorconfig file to Git under my project if the settings I want to change aren't stored in that file.