How to get and use the plugin

1. Download and install USDZ Exporter plugin for Fusion 360.
2. Launch Fusion 360 and Load a model.
3. Click the icon "Simlab USDZ Exporter"
4. Save dialog box opens. Specify a name and save the file to USDZ format.

Install:

Double-click the downloaded installer from Autodesk App Store to install the app/plug-in.

Uninstall:

You can unload the add-in without uninstalling it by clicking the "Stop" button when the add-in is selected in the list box on the "Add-Ins" tab of the "Scripts and Add-Ins" dialog.

Unchecking "Run on Startup" causes the add-in not to be loaded in future sessions of Autodesk® Fusion 360™.

- Navigate to ./ApplicationsPlugins folder and select the app bundle you want to uninstall

- Either drag the app bundle to the Trash or right-click and select “Move to Trash”

- Right-click on the Trash-Can and select “Empty Trash”

- If you prefer keystrokes, you can also just select the app bundle and then hit Command+Delete to move the app to Trash, then empty the Trash and the app will be removed.

https://simlab-soft.com/3d-plugins/Fusion360/USDZ_Exporter_For_Fusion-main.aspx