I'm making a simple browser (that can call command line tools) with Webview UWP. I want to know if it's possible to install pre-made extensions since Webview use the Edge render. I found this about extensions in webview: https://learn.microsoft.com/en-us/windows/uwpcommunitytoolkit/extensions/webview
But I don't really know if this is just for extensions made by developers and I don't understand how to use it (there is no example).
Maybe it's not even possible, if that's the case I just want to know so that I can give up. If possible I would like to get a sample code of the xaml and the C# part, just some tips to understand it better.