I tried to update from Big Sur to Monterey, before this one all OTA updates were smoothly.
I tried OTA update and fresh update, followed the Dortania's Guide for Haswell-E (using iMacPro1,1), all got the same panic in the following pictures.
My hardware is a DELL Precision Tower 5810:
CPU: Xeon-E5 1650-v3
GPU: RX580
RAM: 64GB ECC (come with the desktop, don't know the brand)
Motherboard: X99
Audio Code: alc-3
Wifi: Fenvi
I have also upload a copy of my EFI folder, if you need more info, please let me know. Thanks in advance.