How to Easily Hide GRUB on Linux(Arch Based Distro)
to edit grub linux type this command:
sudo nano /etc/default/grub
then grub timeout set to 0 , and grub timeout style change from menu to hidden
Ctrl X to exit, press Y to save and enter
to update grub you can type this command
sudo grub-mkconfig -o /boot/grub/grub.cfg
Shutdown your PC and Booting again
To back on Default Setting just edit on grub time out to 5 , and grub style to "menu" again. And update GRUB again with command that i type on this video.