I see the bolded repeated so many times on tech news and sites and youtube videos, but I wonder how true it is in the real world. Because in real terms, what they want to say with that is 'it will perform better while encoding a video or generating a a render'. Which is basically the only thing that really used well 100% of big amount of cores. However, and this is my point, that ISN'T PRODUCTIVITY FOR >95% OF PEOPLE. As a minimum the terms is a misnomer.
Most people aren't video editors or 3d animators. For most people 'productivity means having open Outlook, Citrix, 1 Word, 3 excel files, Skype or Slack, 1 browser with half a dozen tabs, and maybe a pair more of miscellaneous applications. Maybe Visual Studio, if you work in IT. And obviously, you aren't going to really use simultaneously use 7-8 applications at the same time, you don't have enough hands for that, so the workload of that average user in an work environment is very different than encoding something in Premiere.