I'm using it for management. It's a management tool. It's like an RDP on HTML. I'm using it to manage virtual machines on Azure.
If you want to manage a server or a virtual machine, you use the remote desktop service to access it. It is on the browser itself. As we are managing Azure Bastion, we have virtual machines, so to access the virtual machines, to avoid having or publishing the RDP port, and to avoid the security breaches on the RDP port, we use the Azure Bastion, which is a managing service on Microsoft.