Using the macOS Automator, you can create a custom service to launch the application of your choice, and bind a keyboard shortcut to it. However, in macOS, there is no built-in way to launch an application by pressing a keyboard shortcut. You can click an icon in the Dock or the Launchpad, or type the name of the app in the Spotlight search box. In macOS, there are many ways to launch an application.
