A similar tool to prolong laptop autonomy is XSuspender <https://kernc.github.io/xsuspender/>. It configurably SIGSTOP-s unfocused X11 applications. It is, sadly, XWindows-only.
Neither do X11 programs (well the ones that care about power effienciency anyways, so not games).
IMO it's kind of understandable, at least on the individual level, that people don't know. I probably didn't know until I first travelled to Asia. However, it doesn't take a genius to realize that a map (or whatever) in an Asian country probably isn't full of Nazi symbols, or that there's probably some kind of an explanation for them.
Of course nobody is buying it, but such cases are nevertheless often dismissed.
I'm curious what sticks if you are led to rather than spontaneously learning.