sure
localhost:~ # cat /etc/default/grub | grep GRUB_
GRUB_DISTRIBUTOR=
GRUB_DEFAULT=saved
GRUB_HIDDEN_TIMEOUT=0
GRUB_HIDDEN_TIMEOUT_QUIET=true
GRUB_TIMEOUT=4
GRUB_CMDLINE_LINUX_DEFAULT="splash=silent resume=/dev/disk/by-uuid/a713d690-8bb6-41c6-9b4d-565ed00aa561 quiet mitigations=auto"
GRUB_CMDLINE_LINUX=""
# GRUB_SAVEDEFAULT="true"
# GRUB_BADRAM="0x01234567,0xfefefefe,0x89abcdef,0xefefefef"
GRUB_TERMINAL="gfxterm"
GRUB_GFXMODE="1280x1024"
# GRUB_DISABLE_LINUX_UUID=true
# GRUB_DISABLE_RECOVERY="true"
# GRUB_INIT_TUNE="480 440 1"
GRUB_BACKGROUND=
GRUB_THEME=/boot/grub2/themes/openSUSE/theme.txt
GRUB_USE_LINUXEFI="true"
GRUB_DISABLE_OS_PROBER="false"
GRUB_ENABLE_CRYPTODISK="n"
GRUB_CMDLINE_XEN_DEFAULT="vga=gfx-1024x768x16"