Found another issue. If you use Cru (Custom Resolution Utility) it will result in you booting to black screen. You can work around this by having one monitor with a resolution that is not modified or plugging in your monitor into another port prior to boot. You can plug it back into the port where you have modified your resolution after booting.
Short Review of GamerOS
The OS runs great, better than stock LTSC and performance wise I am very happy with the results. In my case I did not use the post setup script, I was going to run a test build with it but NTLite errored every time I tired integrating it into the iso. Also in my experience "optimization" scripts break things more often then they improve performance so i this is a rabbit hole I am not even going to bother going to bother pursuing further.
So my verdict is that I like the OS but with all the issues I have experienced to get it working I cannot recommenced this for the average user or people who don't have time to spend installing windows several times over to trouble shoot. In my case it took 3 straight days of troubleshooting with each test ISO taking an hour to create setup/install/test. If you are going to run this OS a dual boot setup is a must one for playing games and another standard windows install.