Every day I use Linux Mint 19 to do a significant amount of research and writing, but I rely on Windows 10 and MS Office to do the heavy word processing, like formatting and compiling large documents which must be readable and editable by a number of people. I also do a fair bit of research and writing on my iPad, which includes photographing and OCRing archival material, note-taking, and syncing to Onedrive. While Google Drive works fine, Onedrive is surprisingly well integrated in Windows 10, iOS, and MS Office. Adding Onedrive to Insync could make work seamless across devices.
I would also add that Onedrive’s pricing for the 1TB+MS Office on 5 devices is a major selling point for many people, including myself. I use Google Drive reluctantly, and only because your client for Linux makes using Google drive so much simpler than any alternative. But I’d much rather use your client for Onedrive in the future.
I hope this is useful.