This began as a symmetrical opening. Eventually, one side or the other will have to deviate from the imitation of the others’ moves. It is at that point when they game can finally be decided. But try to win some material while you’re at it!
I’d just like to mention, the endgame in this particularly match up is quite instructive. I really do love these rook vs. rook endings. You can do a lot by just improving your rook’s position from 4th rank, to 7th rank. There are a lot of nuances one has to really pay attention to when studying rook endings. Though this ending is not perfect, I felt fairly proud of being able to win this game, when I traded queens without having any material advantage.