I think this is what I am interested in. Because, up until now I was adding a

<name>.code-workspace

to all my projects just to be able to access the Dendron workspace from the same VSCode instance.

json
{
    "folders": [
        {
            "path": "."
        },
        {
            "path": "path/to/my/dendron/notes"
        }
    ],

    "settings": {}
}