AMD Overclocking as a separate tab with an agreement that you have to accept before entering, are options given by AMD. You can find there more advanced settings and override options that are not always available in the motherboard's manufacturer options. Some of these settings are automatically adjusted by the motherboard, some can't be set in anywhere else like you can force IF ratio or set manual P states.
If you mean only an option in power settings then it's more like manufacturer's specific option which is related to as you mentioned Ryzen Master.