Bios Mods -The Best BIOS Update and Modification Source

Hi everbody,
I know ryzen 4000 mobile doesn't support pci 4.0 officially, yet something I have seen in my hwinfo made me curious about it. As you can see here, it seems like it has pci 4.0 support in its internal pcie gpp bridge to bus station which is connected to vega7 igpu under it. To me it seems like this cpu support pci4.0 constitutionally but restricted to pci3.0 by amd. 
So I wonder is it possible to unlock that feature somehow for external pcie bridges too like m.2 nvme port?
My notebook is Asus Tuf A15 FA506IU, bios version is FA506IU.314
Thanks

Isn't there anyone who has any idea? If it's possible, I would like to buy this job from someone professional in bios modding. I am adding new images from SIV64X app

Привет ребята. Мне нужна ваша помощь, чтобы разблокировать BIOS на обзоре Asus Tuf Gaming FA506IU. Мне нужно разблокировать все доступные функции отключения. Буду очень благодарен за вашу помощь. Если кто-то сможет разблокировать все возможные возможности, то позже сделает дамп биоса.

Заранее спасибо за помощь.