Productivity apps would be MS Office, yes, as well as separately-purchased licenses for Publisher (and I'm sure there were several other apps at the time). I do not know whether this category would include Visual C++ or Visual Basic licenses, but I suspect it did.

I think you are correct on the OEM vs Consumer split. Long-forgotten memory: For awhile people would resell OEM software licenses online. OEM software licenses could only be sold as a bundle with PC hardware. But that limitation did not specify /what/ PC hardware or that it had to be an entire working system. So resellers would collect outdated 1MB SIMM memory cards or other small, cheap, outdated components and package them with the CDROM.