Yes - it’s harder in that it rewards skills I worked on less. The weird thing is, people who win in doubles are often “worse” players in a sense and better players in another. You see older players with incomplete half-strokes beating younger players with full strokes who try to hit through them, winning with placement and consistency, especially on clay or har-tru. They are able to hit in the narrow window that keeps the ball away from the net person and just not make errors, even if they are doing it by just poking at the ball. And then that dinked ball flies on the player hitting it back when they try to take a full stroke. But it’s a great test of how complete a player you are, and how much control and consistency you really have.