The San Juan Capistrano depot does see Metrolink & Amtrak Surfliner trains stop at that station daily. For the most part those trains are what you'll see stop at this station on the cam. So no long distance routes if you will, this stop is basically a commuter rail stop. Metrolink is Los Angeles' commuter rail service akin to Chicago's Metra.
BTW, there is something of a connection to Metrolink from my last trip by Amtrak in 2016. Our Southwest Chief train from Chicago was running behind to the point where our conductor announced that all smoking stops were cancelled. He wanted to beat a Metrolink train into LA Union Station because it would result in delays of up to two hours. If we were behind that train we'd have to stop when that train stops to making their regular runs. We did ultimately beat that Metrolink and made it into LA on time. Good planning by the conductor on this one.