OneDrive isn't really meant to be a file server for the business....OneDrive client is more just for backing up and syncing the personal folders. You can do "one-off" share folders for sending large files to various people.
For the "central file server" for a business ...Sharepoint is the central file server. And to make it easy to create those root shared folders and permissions, you leverage Teams to do that for you.
Microsoft has several "Power Automate Flows"....meant to take file attachments emailed to that Team/Channel you create for the scans to go to, and save that PDF to the document library. This is the 365 way to have a "Scans" folder on the central file server...that the MFP saves scans to.