How to pass command line options to Google Chrome App / Shortcut?

Question

I have created a Chrome Shortcut following this answer:

https://apple.stackexchange.com/a/329655/460176

Now I want the app to open in full-screen mode every time I launch it. I know I can open the app's package contents through Finder by right clicking on it. I don't understand where I could edit anything to pass any CLI options.

The folder structure is as follows:

<app>
└── Contents
    ├── Info.plist
    ├── MacOS
    │   └── app_mode_loader
    ├── PkgInfo
    └── Resources
        ├── app.icns
        └── de-DE.lpoj
            └── InfoPlist.strings