Download 25GB but only 8GB in Steinb Library Manager?

Hi, I installed cubase 10 Pro today and of the files downloaded the VST Sound folder had 24GB data. I wondered if I’ve correctly installed this as when I add up all the content in the Steinberg Library Manager from the Halion and Groove Agent tabs it comes to about 8GB. Where is the other 16GB or hasn’t it installed?

Appreciate a cubase bright spark to demystify this for me.
Many thanks. Simon