Have you ever installed a program from an outside source and wished that it had a convenient entry in your desktop environment's menu? More often than not, Linux applications installed through any channel other than a software repository don't include a proper desktop entry. Don't worry, though. They're actually quite simple to create for yourself.
This is a companion discussion topic for the original entry at https://linuxconfig.org/how-to-create-custom-desktop-files-for-launchers-on-linux