Web Upload needs to retain file Metadata i.e. File Modify date same as Sync Client
The issue, when dragging files from Explorer to the Web interface, the file modification date changes. This is an undesirable effect. Microsoft seems to be aware and indicates this is a normal operation. When using the desktop OneDrive Sync Client, all file metadata remains unchanged. When using the SharePoint Migration tools (MS Solution) file metadata - Modify date, Owner remain the same. Development team needs to review function and PowerShell setup for moving files from local NAS or desktops to cloud and follow lead from Sync client.