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

What makes you think so ? I dont think Elon is the one behind SHIB.
He tweeted DOGE indeed, but that doesn't mean he created another dog coin.
I think SHIB performance is good because it is the first dog-meme coin that runs in smart contract blockchain.