MBP 15’’ 2011 bad GPU and OCLP

I have 15’’ MacBook Pro 2011 (i7, 8Gb RAM, 256Gb SSD) with failed AMD GPU that was disabled by EFI/NVRAM fix. Currently running OS X 10.11 with no issues, except it’s outdated too much. As I’m planning to install Monterey with OCLP, I’d like to know: - will OCLP boot manager rewrite my already modified EFI/NVRAM and therefore cause any problems? - should I check “software deMUX” in OCLP build settings or leave it unchecked? - will brightness regulator and sleep work in Monterey? - any other tips regarding using OCLP on Macs with dead GPUs?

Author: @kreker01