For windows desktop OS, like windows 11 to enable multi user session windows environments, I suggest looking at Azure Virtual Desktop.
https://learn.microsoft.com/en-us/mem/intune/fundamentals/azure-virtual-desktop-multi-session
For Windows Server OS, you can set up configuration to achieve this. See https://learn.microsoft.com/en-us/answers/questions/21426/multiple-concurrent-rdp-sessions-on-azure-windows