Hello Shwetali Shinde
Welcome to Microsoft Q&A Platform, thanks for posting your query here.
To allow multiple users to log in to your Windows 11 VM simultaneously, you can try Azure Virtual Desktop service.
And please note that RDS is not supported on Windows 11 Pro or Home editions. You will need to upgrade to Windows 11 Enterprise.
Please refer below article for more insights:
https://learn.microsoft.com/en-us/mem/intune/fundamentals/azure-virtual-desktop-multi-session
https://learn.microsoft.com/en-us/azure/virtual-desktop/users/connect-windows?tabs=subscribe
Hope this clarifies your ask.