I'm not saying they have no influence, I just have a problem with you _insinuating_ falsehoods with a statement like "Look into who owns Epic" as if you've just dropped the truth bomb exposing evil China as the mastermind behind two corporations fighting for who gets to make more money.
40% ownership does not dictate anything. They can make a stern request and threaten with some leverage. Ultimately it still won't be TenCent's decision.
That's making a giant assumption that Tim Sweeney cares if he has 10 billion or 20 billion. I've followed his career for decades, and I doubt he would sell out his control for so cheap.