From Phoronix ( Linux 5.18 Power Management Brings Improvements For Both Intel & AMD - Phoronix ) :
“Meanwhile Intel’s P-State driver will now use the default default Energy Performance Preference (EPP) exposed by the firmware. To now Intel P-State has used a hard-coded EPP default for Alder Lake to try to ensure a maximum 1 core turbo frequency is attainable out of the box, but moving forward the Linux kernel will respect the EPP default of the firmware. The hard-coded value will be used should the firmware not expose a default EPP value.”
@Kieran_Levin how does this affect your work on BIOS 3.08 / EC firmware, if at all?