Hello @curious7 !
See the official Link
https://learn.microsoft.com/en-us/azure/active-directory/fundamentals/users-restore
After you delete a user, the account remains in a suspended state for 30 days. During that 30-day window, the user account can be restored, along with all its properties. After that 30-day window passes, the permanent deletion process is automatically started and can't be stopped. During this time, the management of soft-deleted users is blocked. This limitation also applies to restoring a soft-deleted user via a match during Tenant sync cycle for on-premises hybrid scenarios.
You can view your restorable users, restore a deleted user, or permanently delete a user using Azure Active Directory (Azure AD) in the Azure portal.
Important
Neither you nor Microsoft customer support can restore a permanently deleted user.
I hope this helps!
Kindly mark the answer as Accepted and Upvote in case it helped!
Regards