Elon Musk's X faces fresh controversies that look set to put it further behind Mark Zuckerberg's Meta.Apu Gomes via Getty Images; Brendan Smialowski/AFP via Getty ImagesThere's few people Elon Musk would like to one-up than Mark Zuckerberg.The billionaire owner of X looks unlikely to do that now.X is battling advertisers and controversy over false information that could set it further behind Meta.Elon Musk might just be losing any hopes he had of one-upping his arch nemesis, Mark Zuckerberg.The Meta boss has been busy taking selfies with llamas, wakeboarding — and watching his net worth climb almost $53 billion this year to $181 billion.