In this case, you can use differential sync. Or maybe some special folders cannot be copied correctly. But it’s a time-consuming process by the traditional copy-and-paste mode, especially for some large-capacity folders. To avoid data loss, you can choose to back up them by copying and pasting key folders to other locations. Once these files or folders are lost, there will be a huge loss. In your Mac, there may be many important data in different folders, such as financial records, documents, videos, pictures, music files, and so on. One Drive for Mac OS Supports Differential Synchronization There are some inherent complexities, but the synchronization system can work extremely well. On an unreliable network, differential synchronization provides fault-tolerance, scalability, and responsive collaborative editing.

Since there is no requirement that 'the chickens stop moving so we can count them', server-side three-way merges are plagued. Differential synchronization is a symmetric algorithm, which uses infinite cycles of background differences and patching operations. First, I will introduce what is differential synchronization briefly.