Surface Book 2 / OpenCore Big Sur - UHD 620 QE/CI Works, but only with external monitor

Hey guys, after hours of researching I managed to inject (partially) my iGPU, and now QE/CI is fully working but only when my external monitor is connected. Btw, I'm using official Microsoft HDMI to USB-C adapter to connect my monitor. Main display is not working at all.

EFI I was using: https://github.com/Swung0x48/Dell-Latitude-7390-7490-Hackintosh-EFI/tree/Catalina-OpenCore

My specs:

CPU: i7-8650u

GPU: Intel UHD 620 (8086)

RAM: 16gb

Audio Codec: External Audio Card

Ethernet Card: AX88179 USB 3.0 Ethernet adapter

Wifi/BT Card: none.

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What is not working:

• iCloud
• Wifi (it will never work)
• Touchpad
• Main display
• bunch of other things (perhaps)

Link to my EFI: https://drive.google.com/drive/folders/1BgvZ3slL15FuzwTfQpt_mLK3lhlWWaNB?usp=sharing

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https://preview.redd.it/e8a7rb5lq4u61.jpg?width=4160&format=pjpg&auto=webp&s=bbc2ce7bca8af4e8f40c8bfdd8c4064f4f20f794

https://preview.redd.it/s1259n5lq4u61.png?width=2560&format=png&auto=webp&s=18463f15d2b94b9a0fab754d1b1690477f662bdb