Optional packages with executable code

Can pages in Optional Packages be referenced and viewed from the Main Application using Dotnet (C#). That is; can executable codes in an Optional Package be downloaded from the main application using C#? I have tried this documentation: https://docs.microsoft.com/en-us/windows/msix/package/optional-packages-with-executable-code but it seems not to be elaborate enough. Please any useful guide will be appreciated.