What if your organization still prefers a network file share? Consider the updated Azure File Services.
Many of the companies I've worked with have embraced cloud solutions due to their desire to "get out of the datacenter business." The ability to achieve better security and availability, and the speed with which they are able to deploy, is far greater than traditional on-prem options.
During and after that shift to cloud, though, one area that still poses a struggle for many organizations is what to do with their department file shares. I'm sure you're thinking "there are all kinds of solutions," and most of them are far better than a traditional network share. I'd agree with you; however, many organizations have a workforce that is accustomed to this old process. While solutions like SharePoint, One Drive for Business, and Dropbox are nice and have additional features, most organizations still prefer the Windows file share.