For example, with the pressure mechanic, you only need to check if you're above the lowest threshold, as if you're somehow above the window, you might as well 'bail early' rather than wait! The oxygen is the same, but admittedly it's hard to tell because I can only load my save for a few seconds before the ending triggers again
It does seem like the variants won't auto-apply, maybe they have to be named something specific, but it just made scaling up a little funky (not that you do that too much)
I'll also note it's a little odd that charging stations and bulk storage are so late that I actually hit the end of the demo before unlocking them, but I at least got to run a furnace for a little while!