I have seen some sets that state that Gravity has kind of added effect like Telekinesis. But in this moves dex this effect is not specified.
Yes, Gravity has the added effect of increasing all Pokémon’s accuracy by 66% (5/3 multiplier).
Source
Yes it does. I first learned about it from False Swipe Gaming on youtube. I searched it and it does actually increase accuracy. See for yourself
https://bulbapedia.bulbagarden.net/wiki/Gravity_(move)
