I’ve had a different, but similarly strange, issue with Drive on Mac (after using it for 5+ years without issue). It suddenly started moving tons of random files from deep in my Drive folder tree at the root of my drive. So files that were fifteen levels deep, that I hadn’t touched in years, suddenly appeared at the top of my drive. The only thing I can think of is that it’s related to the incident Drive had a few months ago where they lost data - maybe they’re recovering it, but can’t recover the location and just stick it at the root of the directory.
