You can do this by clicking the half-gray, half-blue face icon in your Dock. Then right-click the Trash icon and select Empty Trash. One of the easiest ways to uninstall an app on your Mac is by dragging it from the Applications folder to the Trash in your Dock.
How to Uninstall Apps on a Mac Using Trash Here are several ways to uninstall apps on your Mac, and how to completely remove any of the program’s orphan files. This is especially important if you have a malicious app that is causing your problems. Removing old apps that you aren’t using anymore can help you keep your Mac running like new.