No documentation for Visual Studio on Excel Custom Functions

When reading the documentation on how to add Excel custom functions. I noticed that there is no documentation for Visual Studio as it favors using Yeoman and node.js. This is same with other pages, it has no option for Visual studio.

Link for custom function documentation.
https://learn.microsoft.com/en-us/office/dev/add-ins/quickstarts/excel-custom-functions-quickstart?tabs=excel-online