Ryzen Master is not supported on Mobile AMD Processors like laptop processors. I believe this is to prevent Users from overclocking or under clocking the Mobile processors which can end up damaging the laptop since it might cause the laptop to run past its engineered thermal and power limits.
PBO in BIOS setting is AMD way to safely overclock your mobile processor within its Maximum operating range without causing your laptop to go past its thermal or power limits. Though your laptop might run hotter than average when enabled unless the Laptop manufacturer took that into account.
But there is a Laptop Lite clone of Ryzen Master called RYZEN CONTROLLER:
1- https://gitlab.com/ryzen-controller-team/ryzen-controller/-/releases/2.6.0
2- https://github.com/Ryzen-Controller-Team/Ryzen-Controller:
What's this?
- It's a little Ryzen Master for laptops.
- Works best on 2xxx and 3xxx Ryzen series (4xxx series is experimental)
Note: Download it from the first link GITLAB which I believe has the latest version of Ryzen Controller.
EDIT: It might still work on AMD MOBILE PROCESSORS that are newer than the 4000 Series mobile processors.