If you’re talking about the lastest gen desktop CPUs, they just clocked them too high.
This has been an ongoing problem ever since, like, Ivy Bridge/the 3000 series… and yes, probably has to do with management and marketing decisions tbh, so they can be 2% ahead of AMD in some stupid benchmark. AMD is guilty of this too, and you can see what “sanely” clocked chips look like with their X3D series.