Hello, this is really interesting. I tried to install windows 7 on my gpd Max 2 and was unable to do it. I tried numerous times for hours before giving up. I had issues with nvme drive support on windows 7 and boot issues due to windows 7 and uefi bios
I’m unsure how the GOP pre bootloader you mentioned works.
Can you let me know what you did exactly to get windows 7 working on the gpd p2 max? Thank you