If your main frustration is Microsoft Word, Excel, or PowerPoint saving to OneDrive automatically, this is the first setting you need to toggle.
Sometimes Windows tries to save new apps to the drive with the most space, which might be configured to sync with OneDrive.
If you’ve ever clicked "Save" on a Word document or downloaded a file, only to realize later it vanished into the cloud instead of your local hard drive, you are not alone. Microsoft pushes OneDrive heavily, often defaulting your "Documents," "Desktop," and "Pictures" folders to cloud sync.