Hibernation doesn't work at all on my windows HP work laptop. Sleep has gotten way way better on Linux in the past 2 years even. My desktop that would be buggy going in and out of sleep has now been flawless such that I auto sleep it after 30 minutes.
My thinkpad’s battery is much happier on Linux than windows. It’s hibernate and sleep work as expected.
My windows work laptop can’t even wake from sleep properly unless I I open the lid and re plug the dock each time it’s gone to sleep.
A customizable shortcut key would be so good. I've tried to set that up on my own to be alt because that's what Haiku uses but it's just impossible to get very many applications to follow it. Probably there's no way to consistently do it without getting every application to follow some standard for determining what it should be.