I posted about it here
https://www.overclock.net/threads/overclocking-11700k-11900k-results-bins-and-discussion.1777365/pos...Using flashback does not update the microcode on z590 Apex. I am not sure if this applies to other models as I do not have any other z590 MBs. So check if you are care about being on the latest microcode. You can also check in the UEFI under Advance and CPU
https://www.overclock.net/threads/overclocking-11700k-11900k-results-bins-and-discussion.1777365/pos...