Hi @MaLd0n,
I'm running Catalina on i7-10750H notebook but it seems like i can't boot without USB. Even with USB i couldn't figure it out to run properly because it's really slow. When i try to boot from my HDD with your EFI folder (and i watched your opencore tutorial) it gives me this screen and reboots automatically. I know it says MacbookAir9,1 but i've tried MacbookPro16,1 and 16,2 too. Same error. Any help?
https://imgur.com/N7vRYwb