Had some extra time, so I spent it increasing the size of my swap partition to 20 GB to see if I can increase the stability of sleep/hibernation on my laptop
I’m also not being good with the scientific method, and switched s2idle to deep to see if it’s worthwhile
follow up: it has not stopped the system from the occasional crash.
for more details: it freezes in the last state it was when the laptop was open, warm but not burning hot to the touch.