yes, i tried login using email id " USERID1@XXX.onmicrosoft.com" but it is saying incorrect password though it is correct.
i tried this format AzureAD\YourName@EntraIDDomain.Com.
Even disabled Network level authentication and also updated the RDP file also but still RDP to the machine is not working with entra id.
Added userid with this command as well :
net localgroup "Remote Desktop Users" /add "AzureAD\username@domain.onmicrosoft.com"