The "Hertzbleed" vulnerability

What @flussence is trying to say, is that *enabling* "frequency boost" increases the temperatures by 20C, and has no noticeable benefits on performance; thus, he is advocating to *disable* it. Also, notice that "frequency boost" is about (temporarily) running the CPU at a frequency higher than the baseline frequency; perhaps you where thinking about "frequency scaling", where CPU runs at a lower frequency, during periods of low load.