Questions: ❓ If you wonder can I add others Property to the desktop entry, then here is it.
[Desktop Entry]
Type=Application
Name=MyApp
GenericName=Image Editor # A general description
Comment=An amazing image editing tool # Tooltip when hovering
Exec=myapp %F # Command to run the app (%F allows opening files)
Icon=myapp # Path to icon (or just the name if it's in standard locations)