Hi @Youssef CHTOUROU ,
Can you please clarify what you mean by " should i found all content in the web app "
I see your question was answered in this Github thread.
Adding to Ajay's answer- Snapshots contain both the contents of a web app and the web app configuration. Your app files content can be found in the D:\home\site\wwwroot
folder of your app.
Hope that helps. Please let us know if you have further questions.
-Grace