Wow this game not only looks great but also has a story to it.
I like how even the face is animated.
I also actually wanted to implement something similar to your flashlight thing. Really liked the idea.
The music is also quite fitting. It helps setting the mood.
Good job!
Gameplay wise I found the platforming/jumping really awkward as well. Not sure why though.
Probably a little less friction and more speed and jump height needed? Crossing the spikes in the nuclear power plant was quite frustrating.
Also I kept pressing W by accident and was skipping entire sections of the game. I guess you just forgot to remove that debug keybind before deploying the game.