@RnD0102 Thanks for reaching out to us!
Currently Azure/Azure Backup doesn't offer all in one solution to backup files, disks, storage account and other cloud files shares to Azure. There was a similar ask - https://feedback.azure.com/forums/217298-storage/suggestions/5886483-storage-sync-with-dropbox which was declined by Azure storage team. If you have any feedback or a specific scenario you can reach out to Azure storage team through an email provided in the feedback link.
For backing up files/folders and disks you can leverage Azure MARS agent
For storage account backup you can use - Blob storage backup or AzCopy - AzCopy today can copy an account as fast as 50Gbps thanks to the new copy APIs we have released recently. All AzCopy does is to orchestrate the copy - Storage service copies data directly from a given source URL, hence eliminating a bottleneck.
Feel free to write back if you have any follow up questions.
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