[REQUEST] Asus ROG Strix G18 (2023) BIOS unlocking for undervolting

Actually undervolting is possible through BIOS but is limited to -30mV and it is only the core voltage. Is it possible to completely unlock the undervolting so that it is possible to undervolt while running the OS (increasing the undervolting limit is also useful). I don’t have the laptop but will buy it if the undervolting is possible. So far I couldn’t do much with the image, which can be downloaded here (G834JY):