Keep in mind that a Helm Chart Installation or a Docker Compose Installation is better at handling multiple users than running rasa run which is supposed to be used for Local Mode only.
To quickly test deployment, you can use the Quick Installation which is a quick way to do a Helm Chart Installation with a single command.
To understand how deployment works in detail, you can look at the Rasa Advanced Deployment Workshop. It explains how to deploy and manage a Helm Chart Installation, the architecture and role of each pod/container, etc.