Seperate Launch and Game executables to track Playtime

I’d like there to be a way to select a separate executable to launch games, and to track them for playtime in the launcher. I’ve had games, like Elden Ring with online-fix have a separate launcher that closes after running, so playtime isn’t tracked, however if there was a way to select the other executable (the game) for tracking, it would show the correct playtime in the app.