So, Earth-69420 (the movie timeline) is the one that has the most dank stuff, like The Battle for Burger King and most of the Fallout stuff. In it, the Galactic Civil War is still going on, even after 30 years. It will get involved with the game timeline since Saxton Hale and Zomak the Destroyer come from this universe, but travelled to the game one.
The game timeline is more grounded in terms of stupidity. It's a bit more serious, but still stupid enough. It follows the Disney Star Wars canon, as well as a custom Marvel/DC canon. In this timeline, there will be more characters, locations and forced memes.
Hope that helps, and please give me ye Lunchables.