Is Musk the boss behind SHIB?
Is there an advantage in the future? I am optimistic that SHIB's performance is as good as DOGE

Can someone explain, thank you

No why would you think that? Elon Musk isn't the guy behind any of these coins. Dude has real companies with real things going on. Sure doge is a joke for him but he doesn't spend any real time with doge. Shib is just a token clone looking to catch some mem money. That's all.