Urgent! Please help my disk
Hello, I've been so lucky to have had so much great help from Luis and Old Toad. This forum is really fantastic. As I mentioned in my previous post, I had downloaded Big Sur and had so many problems, so I was advised to do a clean install, which I did. When we installed the new Big Sur, my data was not transferred. I am tempted to downgrade to Catalina, but before doing so, I would like to understand why "Other users" is taking up so much disk space (722.16 GB). Who are these other users, or what are these volumes, and how do I get my disk space back? The disk should have plenty of space after the clean install. I am desperate to retrieve my data and get back to work. Please help me in any way you can.
iMac 27″, macOS 11.4