ubuntu dock duplicated icon on flatpack app

 If you're experiencing duplicated icons on the Ubuntu Dock for a Flatpak application, it's likely due to the way that Flatpak apps are integrated into the GNOME Shell. Here are steps to resolve the issue:


1. **Check for Multiple Installs**: First, ensure that you don't have multiple installations of the same Flatpak application. Sometimes, having more than one installation can lead to duplicated icons.


2. **Refresh Flatpak Repositories**: Update your Flatpak repositories and make sure you have the latest versions of the applications. Run the following command to update Flatpak:


   ```

   flatpak update

   ```


3. **Reset the GNOME Shell**: Sometimes, issues with duplicated icons can be resolved by restarting or resetting the GNOME Shell. You can do this by pressing `Alt` + `F2`, typing "r" in the command box, and hitting Enter. This will restart the shell.


4. **Check `.desktop` Files**: Ensure that there are no duplicate `.desktop` files in your system that may be causing the duplicated icons. The `.desktop` files for Flatpak applications are usually located in `~/.local/share/flatpak/exports/share/applications/`.


5. **Remove Unwanted `.desktop` Files**: If you find any unwanted or duplicated `.desktop` files, you can remove them manually. Be careful when doing this, as you might accidentally remove the entry for a legitimate application. You can use a text editor to open and examine these files.


6. **Favorite the Correct Icon**: If you have both the Flatpak and a non-Flatpak version of the same application, ensure you have favorited the correct one in the dock.


7. **Log Out and Log In**: Sometimes, issues with the dock can be resolved by simply logging out and then logging back in. 


8. **Use a Dock Manager**: If you're still facing problems, you might consider using a third-party dock manager like Dash to Dock or Plank, which can offer more control over the dock's behavior.


If the issue persists after trying these steps, it's possible that there is a specific configuration issue with the Flatpak itself or a bug in the integration. You might want to check the GitHub repository or support channels for the specific Flatpak application you're having trouble with, as there could be application-specific solutions or updates.

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