Select Hotkey Mode and set to Disabled or disabled as required
https://answers.microsoft.com/en-us/windows/forum/windows_10-desktop/lenovo-ideapad-320s-fn-key-lock/64ec1619-7823-48df-aa5f-651b76f2a44a
set linux drive in a higher order
copy windows/EFI/Microsoft to linux/boot/EFI/
done
https://www.reddit.com/r/archlinux/comments/afki9z/dualboot_arch_and_windows_on_separate_drives_with/edzgukg/