Dell Optiplex 7020 Running macOS Big Sur 11.4

Followed the guide here: https://zearp.github.io/OptiHack/ as well as some tips from Dortania Github. Same guide also worked on another Optiplex 7020 for Monterey.

Thank you zearp! A living legend! Would not have done it without you!

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Big Sur 11.4 on Dell Optiplex 7020

CPU: Intel i5-4590 (4) @ 3.30GHz
GPU: Intel HD Graphics 4600
RAM: 8GB DDR3 1600MHz
Motherboard/Laptop Make and Model: Dell Optiplex 7020
Audio Codec: Realtek (Not sure which codec)
Ethernet Card: Intel I217-LM
Wifi/BT Card: NONE
Touchpad and touch display devices: NONE
BIOS revision: A18
Which of the guides on the sidebar you used. SEE ABOVE
What's working, and what isn't working. Most of the stuff is working, at least what I've tested. I'm using a separate Bluetooth Dongle for a Magic Mouse 2, Magic Keyboard and my Boltune BT Headphones. Works great!