Hi @Terziev Ivan ,
Adding to Dagoberto's response- Go is currently in an experimental phase and not recommended for production applications. The Azure docs will be updated to reflect a change if Go becomes GA. If you want to use it in production, you can consider running your own custom container https://learn.microsoft.com/en-us/azure/app-service/quickstart-custom-container?tabs=dotnet&pivots=container-linux-vscode
Hope that helps.
-Grace