I'm having the same issue. I rolled back to 11.3 which works great.
I also have an Asus Strix ROG z490-E with a 10900k and am using your EFI version 0.6.9-1.1
One issue I am having is getting the HDMI port to work. The DP works great. I have a 3090 and have tried with and without the "-wegnoegpu" boot flag but it seems to make no difference. Both HDMI and DP are plugged into my iGPU on the MB.
Reading back it looks like you re-enabled iGPU support in this EFI version. And I double checked and FakePCIID.kext & FakePCIID_Intel_HDMI_Audio.kext are enabled and CommandProFix.kext is disabled. I'm not sure what Hemon meant by "For HDMI I just used the "old" DeviceProperties entry." but maybe that's something I need to change? Any suggestions for getting the HDMI to work on 11.3 would be great.