Use this method if you want to install WebStorm in a specific directory like /opt .
: Once WebStorm opens, go to Tools > Create Desktop Entry to ensure it appears in your applications menu for future use. Option 3: JetBrains Toolbox App how-to-install-webstorm-on-ubuntu-18-04-1
Installing WebStorm, not appearing in programs? - Ask Ubuntu Use this method if you want to install