We currently already use those packages for the NETCore packages and within the project itself for the example projects.
Up until now the older cef.redist packages has been used for the .Net Framework packages. Unfortunately we've exceeded the MyGet feed limit of 500mb, so need to remove the older packages and migrate to the newer ones to reduce duplication.
The older cef.redist pacakges will no longer be updated.
cefsharp/cef-binary#93