The recommendation is to use AppImage to install. Made sure that libfuse2 was installed:
libfuse2 is already the newest version (2.9.9-3).
I downloaded the AppImage version of Arduino IDE. Change the permission to Executable. Then tried Double Clicking on the file - nothing. Right click and Run also did nothing. Obviously, I am doing something wrong.
With that amount of information it is hard to give you a good advice.. you may try to run your appimage in terminal and paste possible error messages here.
Just cd into the directory of it and do
./myappimagename
Make sure it really got executable permissions (chmod +x nameofthefile).
But as a first suggestion: make sure you have the correct appimage. A quick view onto the arduino page just showed a x86-64 appimage directly. If you downloaded that it wont work out of the box since it is done for a different processor. You should look for a arm64/aarch64 or similar variant….yet as far as i can tell there is no official arm64 build.
As far as i know, though, there are arm64 builds of both Visual Studio code and the PlattformIO extension which gives you the full arduino framework on top of a superior IDE - with a steeper learning curve as a price to pay.. but nevertheless worth doing so.
Thank you for the response. That is the Appimage I downloaded. Looks like others are also waiting for Arduino Ide for non-x86-64 OS. I did install Visual Studio Code - mosty for LEGO Mindstorms EV3. I may venture into that possibility. Thank you again.