as you can see in the screenshot linked below, all but one of my objects are not visible nor interactable in the viewport. They are not hidden, nor disabled in the viewport.
It also is not the clipping distance or anything to do with collections, since they're all in the same one. I have been using blender for a year now and never encountered this exact problem before.
I don't know when it happened since I had them hidden while working in edit mode, and then when I switched back to the object mode and unhid them, they still didn't appear.