Explanation:
Box 1: Yes
Share1 is a SMB share.
azshare1 is a File share in a Premium FileStorage account.
An SMB source, and an (SMB) file share as target is supported.
Box 2: Yes
Share2 is an NFS share.
Azshare2 is a File share in a standard StorageV2 account.
An Azure Storage Mover can move an on-premises NFS share to a standard StorageV2 account's file share, as Azure Storage Mover supports migrating from NFS sources to Azure Files targets.
Box 3: Yes
An NFS shares can be moved to a Blob container with Hierarhcical namespace enabled.
Supported sources and targets
The current Azure Storage Mover release supports full-fidelity migrations for specific source- target pair combinations. Always utilize the latest agent version to benefit from these supported sources and destinations:

Reference:
https://learn.microsoft.com/en-us/azure/storage/files/migrate-files-storage-mover