Sorry for being very late. I have tried the EFI-based installation several times, no success. If i switch off all security features and also the NVIDIA-GPU (so that only the Chipset GPU is present), only success with legacy bios.
Attached my YML…
Qubes-HCL-Hewlett_Packard-HP_ZBook_15-20210721-090816.yml (948 Bytes)