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If you mean the screen, then yes.

no but I have often thought that it would be a good thing if it did because I hate light

Yes. Samsung S6 edge I think? Before flashlight was an intentional functionality. I had an app or a ROM that gave me a flashlight button but if I used it too long it would stop working for a while. It would come back eventually but made me nervous so I avoided using it for more than a few seconds.