When Windows users suddenly discover that their files have vanished from their desktops after interacting with OneDrive, the issue often stems from how Microsoft’s cloud service integrates with the operating system. The automatic, near-invisible shift to cloud-based storage has triggered strong reactions from users who find the feature unintuitive and, in some cases, destructive to their local files.
Its been years since being able to save files on my laptop hard drive for work. Its all onedrive. The company uses it as protection - if the laptop is stolen theres no proprietary data on the drive. It also ensures if my laptop breaks all my work is intact.
The autosave feature is also linked to allowing several people to work on documents simultaneously. This is probably related to forcing onedrive use. You can share links to the files, and being able to edit simultaneously is useful. If you turn off autosave like I tend to do sometimes then when others open the file at the same time you all end up with your own version and cant see what the others are doing.
At home I use linux. I got fed up ages ago with MS stealing my files.