It doesn’t uninstall the app. It only empties the cache. It depends on the app what is in the cache, but it doesn’t include information that is needed to run it; it’s only history of your using it.
Clearing the app’s cache will not delete your app data. It will only delete temporary files that the app has stored on your device. These files are used to speed up the app’s performance, but they can sometimes become corrupted and cause problems. Clearing the cache can help to fix these problems.
If you want to delete all of your app data, you need to clear the app’s data. This will delete all of your settings, saved data, and login information for the app. You will need to start over from scratch if you clear the app’s data.
Here are the steps on how to clear the app’s cache and data on Android:
Open the Settings app.
Tap on Apps & notifications.
Tap See all apps.
Find the app that you want to clear the cache for.
Tap Storage & cache.
Tap Clear cache.
If you want to clear the app’s data, tap Clear storage.