A basic question regarding grub display options

[PM]

> To boot to recovery, you can amend the linux line of the entry
> from
> linux /boot/vmlinuz-x.x.x-xx-generic root=UUID=xxxxxxx ro splash quiet
> to
> linux /boot/vmlinuz-x.x.x-xx-generic root=UUID=xxxxxxx ro 1
>

But making this change, would permanently do what? Means I would be able to
hide that option? or what?
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