* Application Prelaunch is a feature that allows users to launch applications faster by creating a session when the user logs on to Citrix Workspace app, before the user requests an application. This feature is enabled by Delivery Group and can be configured for all users or a subset of users1.
* Session Sharing is a feature that allows users to launch multiple applications using the same session, reducing the load on the server and improving the user experience. This feature is enabled by default and can be configured using Citrix policies2.
1: Prelaunch and linger 2: Session Sharing Explained with Troubleshooting Steps