The biggest problem is that there are no stockholder rights in Meta (just like Zynga, Google and many other ones).
Zuckerbergs owns less than 50% of the company but he can do whatever he wants and no activist investor has any say.
Owning these Class-A shares (why not call them class Z?) is worth 1/10 as much as owning class B shares that Mark and his cronies own.
The multiple voting share structure is an abomination and perversion of stock market.
The old way was at least more honest.
Regular shares -> most risk, most profit, actual voting rights
Preferred shares -> less risk, some profit, no voting (what Class A should be)
Bonds -> least risk, set yield, highest preference at liquidation