For a very long time, I included OneDrive as a part of my (probably overly complex) backup strategy. But over the last few months, I have chosen to abandon OneDrive. It has become a "true cloud based service" instead of being a "mirror a hard disk in the cloud service". It seems to be keeping the data primarily in the cloud and only to store it on your hard disk when you are actually using the data.
I don't know exactly when the change to OneDrive took place and I didn't happen to see much publicity about it. But it's a terrible decision. I don't know why anybody would put their RM data or any other data in OneDrive with the way OneDrive presently works. I'm not going to entrust my data to OneDrive nor to Apple nor to anybody else. I'm going to keep my data local and back it up myself. My backup strategy will definitely include cloud based mirroring services, but no cloud based storage services.
In the unlikely event that anybody from Microsoft does genealogy and uses RM and is on these forums and is listening, I would advise you that Microsoft's decision to make OneDrive into a "true cloud based service" instead of being a "mirror a hard disk in the cloud service" has totally ruined the utility of an otherwise perfectly useful product. I hope it's not the ruin of Microsoft, but the direction Microsoft has been going lately - like how Windows Updates will reboot my machine out from under an open RM session - is not encouraging. I don't like the Mac user interface, and some of the things Apple is doing are about as bad as Microsoft. It really is all very discouraging. Unless I'm willing to go to Linux for my desktop, Microsoft and Apple are about the only shows in town. I do have a Linux server in my house, but that's not the same as using Linux on the desktop.
P.S. There is surely a valid question as to whether OneDrive, Dropbox, and their various competitors are truly backup solutions. The answer is yes, no, maybe, and it depends. I don't think mirroring is adequate as your only backup solution. But as I said, it can be part of a good backup strategy as long as that is not the only thing you do. And OneDrive isn't even mirroring anymore.