Disabling Visual Studio Code update notification automatically with PowerShell

Is there a way to programmatically alter VS Code settings? i.e. How can I use PowerShell to disable updates for VS Code? This question Disabling Visual Studio Code update notification is what I would like to do, but what are the configuration files etc that I have to alter via a regex replace? Also, what is the best way to alter it: using regex replace, or are there better techniques in PowerShell to do this (if the files are XML for example, maybe there are better methods to modify the configuration)?