5 seconds? How?
My grub is set to 2sec.
From pressing the power on button to an open start menu (I measure like this because the DE is still unusable for a good 5s after it becomes visible) it takes me about 36 seconds.
I recently tried hibernation thinking it would speed things up, but it takes about 2 minutes... huge RAM bad I guess.
(And yes, windows on the same hardware is way faster at about 17s, because it does some magic idk about)
GLM is pretty good in mg experience, the company I currently freelance at runs it locally (in house server room) for compliance reasons. But it needs very beefy hardware.