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.
TenCent owns 40% of Epic’s stock, has a seat in the board, and controls access to much more of epic’s revenue than Apple does.
TenCent can absolutely dictate a policy in relation to Apple to Epic if they so choose.
China absolutely has interests in seeing a less powerful Apple, for numerous reasons.
Does this mean the Chinese government is driving this policy? Of course we don’t know.
But, we do know that they were ok with their share of the iOS revenue being lost.
It’s also completely unreasonable to discount to 0 the idea that this is at least in part driven by Chinese government priorities.
It’s not reasonable to say that the only incentives involved here are money.