Azure Site Backup using a SharePoint site design
Not a very catchy title... But is does what it says. This solutions enables SharePoint site owners to backup their document library site content to an Azure Blob storage using a site design.
The solution is based on a SharePoint site design, an Azure storage account and 3 logic apps.

If you want to know more about the solution or you want to implement the solution on your own environment:
https://github.com/the-qoders-community/SharePoint-to-Azure-Backup