I try to install the blender exporter in the latest version of blender (2.93) with the Install from Zip procedure and I don’t find the addon after the installation. I looked at the console but there seems to be no mistake.
I just tested it myself on latest Blender and it installed fine. Are you sure you’ve enabled the add-on? It’s a 2-step process - first you install the zip then you need to enable it. Once that’s done it should show up as an option in the export menu and export settings are in the World Properties tab.