The integrated GPU performance of this processor does look like a nice improvement over Intel's typical integrated graphics, and might even be slightly faster than the Vega 10 graphics found in Ryzen 7 3700U laptops, when optimally configured.
However, this is a reference system designed to show off the capabilities of Intel's new hardware, and performance might not be quite as good on most systems actually available for purchase. For example, system memory plays a big role in integrated graphics performance, and this sample system is outfitted with fast 3733 memory, while the systems its being compared against range from 1867 to 2400 memory speeds. RAM speeds are not a headlining specification, and often aren't even mentioned in product descriptions, so that's one area many manufacturers will likely be cutting corners, at the expense of performance, especially graphics performance. And of course, Intel didn't allow any battery or power consumption tests, so it's possible this system was configured for additional performance at the expense of battery life.
What I DO NOT want to see is any truth to the rumors of an 18% IPC boost and a 20% decrease in clock speed...
Well, the article does point out that the max single-core boost frequency for the 1065G7 is just 3.9 GHz, which happens to be 18% lower than the 8565U's 4.6 GHz boost frequency. In a device like a laptop that's often limited by thermals, it's possible that the 1065G7 might be able to maintain those boost clocks longer though, due to lower heat output, resulting in better performance overall, despite the lower-clocks negating its IPC gains.
When it comes to desktop processors though, performance is usually not nearly as limited by thermals, so lower heat output isn't likely to benefit performance much. If Intel were able to push clock rates high enough on 10nm to allow desktop chips to match the performance of their current Coffee Lake offerings, I would assume they would be doing so. Instead, next year's desktop chips are apparently going to still be built on the same 14nm Skylake architecture they have been using since 2015. So no, don't expect them to release a 10nm processor that outperforms a 9900K anytime soon. Maybe in 2021?