Good evening fellow hackintoshers! I have a Dell Latitude E6430 (specs bellow) and I put Big Sur on it via OpenCore and everything works great, except my little dirty iGPU, the infamous Intel HD4000... What should I do?

My Problem

The OS recognises it as an Intel HD 4000 and does this with it's full VRAM. Image

I use Lilu+WhateverGreen, I patched the GPU, I don't have a dGPU in my system and still, my internal screen glitches the hell out of itself (shown in the video) and today I tried it on an external display and everything is 10/10 there.

What should I do? For context I didn't use any prebuilt stuff.

Thank you in advance!

PS:
The Full specifications:
CPU: Intel i5-3380M (2 core, 4 thread base clock 2.9GHz, turbo 3.6GHz)
GPU: Intel HD 4000 (iGPU, 1,25 GHz Turbo)
12GB hynix DDR3 1600MHz RAM
Storage: 240GB PNY CS900 SATA 3 SSD
Wifi Card: Intel centrino advanced-n 6205
Bluetooth Card: DW380 aka bcm92070MD_REF12
SIM card: dw5560 hspa+ mobile broadband
Motherboard: Dell Inc. 0CPWYR (Socket 0)