I have a Prime Z790-A WiFi, and after updating to Bios 1663, there is now an option to enable Windows Dynamic Lighting support for Windows 11. Previously this was apparently only in the beta bios for apex and maximus boards I think.
It's NOT on by default, you have to enable it in the bios itself. It's in a sub-menu, I forget which one, but you can just use the search feature for "dynamic lighting". After enabling it, it will show up in windows under Personalization > Dynamic Lighting.
