I can’t answer specifically with regard to these Devices, but Core was the original project which was then replaced by WebCore. So at this point, anything that you could do with Core, you can do with Webcore, and all new features are only being added to Webcore. So there’s no reason to install Core now if you are just starting, you can go straight to webcore . They have their own forum if you have any further questions about either core or webcore:
https://community.smartthings.com/t/introducing-the-new-webcore-community-forum/96259