I have files uploaded to OpenDrive and have been attempting to create an index. I've succeeded only once out of several attempts to get the indexing to complete without the Macintosh OpenDrive desktop app shutting down and the indexing stalling at arbitrary distances from completion. Outside of this problem, neither application seems to exhibit any other bad behavior, so I can't tell if the problem is one or the other or the two not liking collaboration.
My goal is having lots of files on OpenDrive and a lean hard drive, with Foxtrot replacing Spotlight on the Mac OS.