File folders started disappearing from my desktop and some files in the remaining file folders disappeared. I went through my Mac and found some Individual files. I finally realized I had multiple files and file folders with the same name. For instance, my desktop. I have found four separate versions of my desktop saved with identical names in different odd folders. I didn't know that was possible. I pulled files and file folders I needed from three desktop versions and combined them with the fourth, most complete desktop version. I am finding other duplicates of files and file folders as time goes on. I have no idea what happened, what I may have done or why my desktop was saved under the same title in various odd file folders. I am perplexed. Any ideas how or why it happened and how's to correct it? I am running macOS Monterey version 12.5.1 on a 15 inch 2017 MacBook Pro with a 2.8 Ghz Quad-core intel Core i7. Thank you for your time and attention.