So, I was digging through my ACPI Tables, I found out that there's a separate VBIOS (I'm really not sure if it is the VBIOS, it was named as VFCT) and also that the DSDT has the none of the commonly used ACPI Paths for GPU (i.e., GFX0, AGP1, VID etc), instead has GP17.
External (_SB_.PCI0.GP17.VGA_, DeviceObj)
And this path points to my Graphics driver on my Windows.
Also looking through the ACPI, I found out that there were several SSDTs apart from the main DSDT (Which on decompiling threw warnings, but after linking all the SSDTs together it decompiled without warnings).
I'm gonna need some help regarding this "DSDT" patching, because I'm really new to this ACPI patching.
Oh and yeah I have Catalina Booting with WiFi (Thanks to itlwm by @zxystd), keyboard works, just no GPU acceleration with 7mb vram.