CAT-THE-FIFTH
LMAO,£115 for a motherboard which is stuck running 2666MHZ DDR4 at best?? I expect reviews in general to quietly forget that.
It seems to work with XMP profiles, maybe

We have deliberately let the Z370 overclock the Core i3-8350K chip, raising the all-core speed from 4.0GHz to 5.0GHz.
B360, which doesn't have this feature and is therefore represented at stock CPU speed, also doesn't allow you to overclock the memory, so 3,600MHz it is on our fastest memory set.
I say maybe because the RAM used is a 3.2 GHz set (“G.Skill 32GB (2x16GB) DDR4-3,200”), so I dunno how hexus ran it at 3.6 GHz without overclocking it. The K chip used shouldn't affect this, since it's only rated for 2.4 GHz RAM at stock speeds
ETA: unless hexus used different RAM, that would explain it