My car was too cheap to have an electric liftgate, though I don’t know if I can open it with a dead battery - never tried, and never had a battery so dead it needed replacing that urgently. Very possible it doesn’t open with a dead battery though, at least if the vehicle is locked when the battery dies.
I do not understand ever storing anything in the oven, its a cooking tool not a storage tool.
I will agree if you have a gas stove that checking the pilot light is a good idea, but those are becoming less common as we are discovering just how bad they are for your health - that, and induction is amazing for anything that doesn’t require an open flame (and that’s what bbqs are for!).