I think it's mostly us with lots of external gear (mostly audio related) that things get a bit wonky, and if you're running graphic-heavy applications that you're trying to resume at the same time. For example, Ableton for the longest of times couldn't handle resuming from hibernation for me, seems to work today (Windows 11), but still having the same issue with a running Houdini window, resuming from hibernation does something with the communication with the GPU (my hunch) and the window freezes when resuming.