So, I never did figure out why Nextcloud moved/deleted so many of my files. It seems to have moved a bunch to the userprofile\files folder of the Nextcloud share, and deleted a bunch that went to the pruserprofile\files_trashbin\files folder. I would start a restore from Nextcloud trashbin, and my laptop fans would spin up and the browser would freeze for several minutes. It would end up restoring 500 to 1000 files before stopping. It seemed to be using the browsers resources, so I moved to my desktop. Worked a little better, and after many tries, finally got all those restored. It took a couple days of going through the userprofile\files files and manually moving them back where they belonged, but finally done.
In the end, I don't think it was an unraid issue, but appreciated those who helped me get things restored.
