Yup. All the headlines following the pattern "${billionaire} {gains|loses} ${x} billion this week" are mostly just fluff, the marginal share price of any given stock wanders all over the place even without forced sales or people trying to buy them out.

There's some interesting exceptions, like how Musk has managed to sell Tesla shares totalling more or less as much as the business itself has made in total lifetime revenue; but even then, Musk's theoretical net worth is very different from how much he could get if he was forced to sell all his shares suddenly.

Owner-CEOs like Musk and Zuckerberg get all the effects of such randomness, but the only examples I can think of such people getting into billion-dollar legal troubles tend to be examples which go on to sink their companies completely, so I'm not sure what impact a fine of "merely" 10% of cash reserves would do to investor confidence as expressed in share price. And this is not the only legal case Meta's facing right now.