As of time of writing (3 or 4 may have changed by the time you read this):
- The top-right black circle shows it is my turn in one game.
- When I click the black circle, it takes me to a game in stone removal phase (https://online-go.com/game/25367739)
- I have accepted the score but my opponent has not yet accepted.
- In all my other games, it is not my turn. I have refreshed a few times to rule out newly-started games.