iMacPro1,1 dual boot Monterey, Windows 11, audio works ALC897 or hdmi, drm, Vda decoder, all USB, iMessage, Facetime
EFI: https://drive.google.com/file/d/1bDkdYrgywK7Z7rz77hnqGEeMrsi34Boj/view?usp=sharing
I'm not as good in clover but try inject alcid=12, I have Asus Prime B560M-A alc897 and I managed to get it work, I had to use different AppleALC.kext somewhere from Olarila