When running Arduino IDE on Linux, you may get this error:
dlopen(): error loading libfuse.so.2 AppImages require FUSE to run. You might still be able to extract the contents of this AppImage if you run it with the --appimage-extract option. See https://github.com/AppImage/AppImageKit/wiki/FUSE for more information
The error can occur if there are missing software dependencies for AppImage. You can solve the issue by installing them.
Follow these steps:
Open the Terminal application.
Enter this command:
sudo apt-get -y install libfuse2
Press Enter and wait for the process to complete.
Close the Terminal window.
Try launching Arduino IDE again by double-clicking the AppImage file.