Here is what progress I have made with my EFI so far for my E5570 running with Monterey very smoothly & boot time down to just under 30 seconds.
Thank you to Zal for the last EFI he loaded up, I was able to tweak it for my specific config. In the OpenCore Config up updated the Model to MacBookPro15,3 and added the remaining device properties, for those of you running on SSD, TRIM is enabled in this EFI for APFS, however you will need to push the command in terminal post install of Monterey.
My Config
CPU: 6th Gen Intel i5 - 6200U (Skylake)
RAM: 16GB DDR4
GPU: Intel HD Graphics 520 Metal is supported
LAN: Intel I219LM Gbit
Wi-Fi: Intel 8260 AC Wi-Fi/Bluetooth Combo Card || (0x8086, 0x50) Apple HWID
SSD: Samsung EVO 850 PRO 512GB
What's Fixed in my EFI
Wi-Fi with Intel Wireless
Corrected CPU Throttling issue
HDMI Sync delay on Intel HD Graphics 520
What I Need Help With
Bluetooth: I have used the intelbluetooth kext to no luck if some one could point me in the right direction to get the BT working I can live without it but I'd rather have it working
iCloud sign in, I have every other service signed except that. (not that I need it, but would be nice to use facetime and messages)
Thank you
EFI.7z