Moving further back in time here’s a really ancient Ruy Lopez with Wilhelm Steinitz playing Black. Steinitz is generally regarded as being the founder of modern positional play as he codified many positional ideas and techniques that had previously been less formally stated and existed only as rules of thumb of the best players. This clarification enabled Steinitz to stand head and shoulders above his contemporaries and he was World Chess Champion for some 28 years.
In this game Steinitz provides us with a model example of how to use the bishop pair by taking space and depriving his opponent’s minor pieces of useful squares (for example 19…c5). When his pieces are clearly stronger than Black’s he is able to exchange off into a much simpler endgame: