@Srinivas Rautwar Thanks for reaching out. This is not possible currently. the conditional access cannot allow access to office 365 just from Azure VDI.
You still have options to secure office 365 access by device state (Hybrid AAD joined and compliant devices), and approved apps from conditional access.
But if you are looking for particularly Azure VDI, no option as such.
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@Srinivas Rautwar By everything else if you mean Office 365 service, you can use something like this :
1) Create one policy for Azure virtual Desktop like this : https://learn.microsoft.com/en-us/azure/virtual-desktop/set-up-mfa#create-a-conditional-access-policy
2) To block office 365 services on personal device, you can use this :
Select Office 365 in Apps option and select compliant device under grant :

@Srinivas Rautwar
I just wanted to check in and see if you had any other questions or if you were able to resolve this issue?
If you have any other questions, please let me know.
Thank you for your time and patience throughout this issue.
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