The biggest confusion for new users is the difference between and Local files.
When you upload a 5GB video file via the web browser, you are at the mercy of your browser’s memory management. If you close the tab or lose internet, the upload fails. The , however, runs as a background service. It integrates directly with the Windows File Explorer, allowing for drag-and-drop functionality, thumbnail previews, and resumable transfers. You can shut your laptop lid, open it at a coffee shop, and the sync resumes instantly—no browser tabs needed.