A couple of the more interesting bits.
"The temperatures measured on the motherboard of Asus were, in turn, so low that the undersigned had to suspend the tests to ensure proper contact between the thermocouple. However, there was no problem with the installation of the heat sensor, and the power supply also works really cool. Without the airflow produced by a separate fan, Asus's power supply was up to 13 degrees cooler than its closest competitor, Gigabyte reached 85 degrees Celsius. When the fan was installed in the rear seat of the casing ceiling fan, Asus' power supply temperature dropped to 66 degrees and Gigabytes temperature to 75 degrees."
And
"Temperature measurements also revealed a disadvantage of a Gigabyte motherboard. Gigabyte has released PowerPoint for Z390 motherboards, which compares the power supply temperatures of different motherboards and compares them to their own products. In the same presentation, Gigabyte instructs the media to use their motherboards, the readings displayed to them specifically by the VRM MOS thermometer added to determine the power supply temperature. The value of this thermocouple can be read in both the motherboard bios and through multiple monitoring software. However, in the tests, it was found that Gigabyte has been obviously creative with the positioning of that probe because the temperature reported by the VRM MOS sensor was found to be up to 23 degrees below the external voltage of the K-type thermometer."
Unusual considering the current 'gigabyte VRMs are the best' narrative that is going around.
The Asus board also came out top in terms of efficiency despite not using doublers and performed the worst when it came to RAM overclocking with 2 dimms. Something ASUS is apparently usually quite good with.
