Sidecar without igpu/ having F-ended intel CPUs?

I have already added shikigva=40 to bootargs, but sidecar on my iPad still got black screen. I have no configurations on device properties on igpu stuff since I got i5-10400F. I got dGPU 5500xt 4GB, smbios iMac20,1, fenvi wifi cards that Bluetooth and WiFi are working perfect. Is there way to force sidecar to decode in dGPU?

Author: @redouglas39