[imtringued]

I'm not sure what you are talking about. I installed Arch Linux last week on a new machine and all I had to do was pacman -Sy mesa and that's it. Actually, that's a lie. I installed a DE which installed mesa as a dependency automatically.

[3np]

With Arch obv you don’t have the issue with Mesa and kernel updates as the main repos are recent enough.

Which AGESA version are you on? Does hardware accelerated decode and encode work as expected?