The final battle of Star Wars: The Rise of Skywalker is chock-full of cameos. One of the most obvious is Wedge Antilles in the gunner seat of the Millennium Falcon. While the moment is just a brief and fun nod to the Star Wars original trilogy, the comics and novels that surround Wedge reveal things were far more somber, as he had just faced a tragic loss.
Source:https://www.cbr.com/wedge-antilles-rise-of-skywalker-cameo-sad-star-wars/