You can see data from players similar to you by filtering the graph by Elo or time control. If you are interested in really high rated games you can swap the database and see tournament games with >2000 Elo from the Kingbase dataset, or to go even higher you can view a dataset from chess engines playing each other. It can be surprising how different the graph looks in tournament games compared to even high rated Lichess games, to swap or filter the dataset click the graph button at the top of the screen.
If you want to see the opening from a specific game on the graph you can use the "Trace Game" feature, then you can paste a PGN in, or if you are a Lichess player you can grab games from your Lichess account. To find a position you are interested in you can click search and enter it into a chessboard.