1.For Bluage L3, Which Image to select(BluAge-L3-Workshop-Image or BluAge-L3-Workshop-Image-4-2-0) 2.Stack status is not visible(active or inactive)

I apologize, but I don't have specific information about BluAge L3 Workshop images or their versions in the provided sources. Regarding AppStream 2.0 images in general:

1. When selecting an image for a fleet, you should choose the most recent compatible version that meets your requirements. Without more context about the BluAge L3 Workshop and the differences between these image versions, I can't recommend which one to use. You may want to check with your organization's AppStream 2.0 administrator or the BluAge documentation for guidance on which image version is appropriate for your needs.

2. Regarding stack status visibility, AppStream 2.0 doesn't typically show an "active" or "inactive" status for stacks in the same way it does for fleets. Stacks are essentially configurations that associate fleets with user access policies and storage settings. The stack itself doesn't have an active/inactive state.

To check if a stack is properly set up and ready for use:

• Verify that the stack is associated with a fleet
• Check the status of the associated fleet (which should be "Running" for active use)
• Ensure user access policies are correctly configured
• Confirm that any necessary storage configurations are in place

You can view and manage these settings through the AppStream 2.0 console in the Stacks section. If you're unable to see expected information about your stack, you may want to check your IAM permissions to ensure you have the necessary access to view and manage AppStream 2.0 resources.
Sources
Key concepts - Best Practices for Deploying Amazon AppStream 2.0
Fleets and Stacks in Fleet Type in Amazon AppStream 2.0 - Amazon AppStream 2.0