If you're wanting to uninstall a launcher, there are a few different ways that you can go about doing this. We'll go over a couple of the most common methods below.
One way to uninstall a launcher is by going into the settings menu of your device. From here, you should be able to find a list of all the installed apps on your device. Scroll through this list until you find the launcher that you want to remove, then tap on it and select Uninstall.
Another way to uninstall a launcher is by using a third-party app manager or file explorer. Simply open up the app or tool that you're using and navigate to where the launchers are stored on your device. From here, you can delete the files associated with the launcher (or move them elsewhere if you'd prefer).