009.04.91.23. How does `grub2-mkconfig` tool utilize scripts from `/etc/grub.d` and settings from

it's a foundational script setting up basic GRUB2  environment variables and functions.

01_users -
it integrates security by handling user authentication.

08_fallback_counting -
it implements fallback mechanisms and boot success tracking.

10_linux -
it handles loading kernel and initrd, also utilizes `blscfg` for generating menu entries for all detected Linux kernels.

10_reset_boot_success -
it resets boot indicators

12_menu_auto_hide and 14_menu_show_once
they control visibility and timing of GRUB menu.

30_uefi-firmware
it provides a menu entry for accessing uefi firmware setting directly from GRUB menu.