I downloaded a few small ones and discovered the *.vstsound files are identical to those installed with the PP4/GA4 installation. The only difference is that the P2/GA5 versions have no installer, only the vstsound files. So you need to set these up using the Library Manager instead of using the installer.
CB10 and I think even earlier versions already used the Library Manager to be able to install and configure content so this creates confusion! Especially for people that have no idea what *.vstsound files are. The difference between these downloads have absolutely noting to do with P2&GA5 itself!They shouldn’t mark these downloads as ‘only for P2&GA5’ but rather as ‘only for versions CBXX and above’? Especially without any documentation it creates a lot of unnecessary confusion. Because it implies that you need to reinstall these if you upgraded to P2 and/or GA5. Hope they’ll fix this soon or at least add some documentation explaining things.