I found out what happened! I was having trouble finding mods downloaded from Curseforge, and was clicking through everything possible when I found it. My computer made a hidden duplicate Electronic Arts folder when I moved my documents folder from OneDrive to Windows/computer. I haven't added the old saves back yet, but it answered my confusion. The new path is Windows (C:) > Users > Public > Public Documents.
(I don't know if that's common or just a my laptop thing. It's a several years old HP Pavillion. Bought in 2020 but I think it was made two years before that.)