Why is hibernation so hard?

First of all, this comes from a place of love. I'm not asking for tech support, I'm genuinely curious. I've tried Linux multiple times, daily drove it on my laptop for a year and would love to keep it that way (Probably won't switch on my main desktop, since I need some Windows DCCs). Linux offers much sleeker experience.

I enjoy some tinkering in my free time (but not that much to use Linux on my work PC). I always tinkered with Windows to some extent. I'm not looking for out of the box solution.

But why is it so much fuss to setup hibernation and suspend then hibernate? It's a crucial feature for laptops. To be fair, I have always dual booted with Windows and I understand that is the more complex option. I can bear having hibernation working only on Linux, since I use Windows only when I really need to, but even that takes too much time in the terminal.

Am I missing something or is it really always this way? Why is suspend out of the box with no problems?

https://redd.it/1uwf03v
@r_linux