bash: ./arduino-ide_2.0.4_Linux_64bit.AppImage: cannot execute binary file: Exec format error

This error message indicates that the file you are trying to execute is not compatible with your operating system. In this case, it seems that you are trying to run a 64-bit AppImage file on a 32-bit operating system or vice versa.

To resolve this issue, you should check the compatibility of the file with your operating system and download the appropriate version. Alternatively, you can try running the file in a virtual machine that has the compatible operating system installed.