Paragon NTFS installs its pane to System Preferences, so it is not enough to drop the app to Trash to remove it. There are 3 ways to remove Paragon NTFS.
You can uninstall Razer Synapse from Mac manually, or use the uninstallation tool. Learn three uninstallation methods on how to completely remove Razer Synapse.
To check the current storage usage, go to Settings → General → Statistics → Storage & iCloud usage → Manage Storage. You will find the biggest space eaters.
You can hide files on Mac in 2 following ways: 1) Open the Terminal and type the command... 2) Use a free app Funter which allows you to hide/unhide files...