In the alps, DS strts 200 feet higher than Juggs. DS is angry at him because he threw a tree at ironman but it hit his ship (I know they r in different universes)
If we're talking a standard, post-crisis version of Darkseid, then he's going to eventually have to resort to BFR, which would be easy enough for him to accomplish. Without BFR, DS would need to summon or acquire some kind of outside help, since Juggernaut basically only has two weaknesses, telepathy and magic (maybe 3, if you include his encounter with Nimrod), and Darkseid doesn't personally have either.
Since BFR isn't banned here, once DS figures out that Juggernaut's durability is stupidly high, Marko will probably find himself on another planet or floating through space in short order.