Steve Rogers: I keep telling everybody they should move on. Some do, but not us.
Thor: [Summons Stormbreaker, barely missing Captain Marvel, who just smiles at him] I like this one.
Thanos: You could not live with your own failure, and where did that bring you? Back to me.
Wanda: You took everything from me.
Thanos: I don't even know who you are.
Wanda: You will.
Answer: No, his snap simply restored all the people Thanos' snap eliminated. They discuss it before he snaps. Tony reminds him to not try to do anything other than bring the people back.
We don't know that's all he did. Considering the Ancient One's warning that removing a stone for one's universe could have disastrous affects on that universe. One would think he would return the stones.
DetectiveGadget85
She was talking about removing them from the timeline, nothing about destroying them. According to the comics when the stones are destroyed the powers they represent will be made physical again in a different way. This does not happen when they are removed completely, since the power inside (the energy) cannot be reassembled again.
lionhead
Destroying the stones almost killed Thanos. Hulk would not have been able to bring back half the universe and the stones with no further impact.
We do know. As stated in the answer, Tony and Hulk specifically discuss ONLY bringing the people back. Since it's stated in the film, we can say with certainty that's all he did.
As stated in the film, he also tried to bring Natasha back who wasn't one of the half Thanos snapped away, so while unlikely, perhaps he did try more.
jimba