Niether 0.10.9 nor 0.11.5 of the refind binaries made a difference (same exact error). Fog works, and the booting network UEFI and into Windows is 100% fine on the Lenovo m93p.
Turns out about 30% of our public machines are without a CSM module. Because of that, and because BIOS boot works, I have decided to fall back to BIOS boot deployment for my org’s public computers. The way my fog installation is now will still allow me to grow with the Lenovo’s without having to fight with it.
Thanks for looking into this with me, I have appreciated the help.