Looks it does take the screenshot though it places it in the Bright_Past-0.002-pc folder right above the traceback error file. So all you have to do is hit S to take the screenshot ten hit return to go back into game from the crash page.
Yes, it does the job - it means that saving a screenshot actually works, the game crashes when it tries to display a notification about it after it's already done. Possibly because of a formatting error in that line of text.
But doing this kind of dance because of a couple of lines in the translation file that probably shouldn't even be there, feels a bit... I don't know... annoying? Dumb?
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Made a fix for this now. Extract to your game root folder (where the Bright_Past.exe, sh and py files are)