Reading that article and looking at their own screenshots shows that they must either be on some serious drugs or that they simply do not understand the context of what is visible right in from of them.
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This is with a 9900k and an RTX2080ti @1080p. Yeah, duh. They have the Vulkan Ray-tracing extension on and with "Very-High" settings Anti-aliasing is set to max. So naturally they are going to be CPU pegged and frame limited. Take settings up to 4k and turn down the AA and the frame rate picture changes more than a little bit. That article is amateur-hour, not to be taken seriously.