It's S4 sleep I was actually looking for and that's not supported by Linux.It's related to kernel lockdown somehow.
I can't disable secure boot on my thinkpad unfortunately so it will remain this way, I think the windows installation might break if I disabled it anyway.
As a side note related to kernel lockdown
Apparently Linus was part of a heated argument at some point and refused to merge changes to the kernel that might've got this working, essentially meaning, to my knowledge, that no Linux machine is able to do S4 sleep (Hibernation) with secure boot enabled, and probably won't ever unless some major changes occur/forces act that will force them to implement the relevant changes that might tangentally fix S4 sleep under secure boot.
https://lkml.iu.edu/hypermail/linux/ker ... 01607.html
This is the part of a longass thread where Linus says at the very end "No way in hell will I merge anything like this."
It is kinda sad that this doesn't work, S4 sleep is a feature I really enjoyed, and it's useful beyond leaving a laptop over the weekend, for example from my understanding if a laptop is low on battery and is in S3 sleep (suspend to ram) it will suspend to disk before shutting off, allowing you to resume easily after plugging into power with all your work saved.
