Meta does pay higher (maybe not 2x higher) and the message in OP says employees will get their November 2022 vesting, which implies they won't get any future vested stock.

Well no because they no longer work for FB. But they still have all their vested stock.

Yes, which is what the GP post said, they lose their unvested stock. By future vested I meant, stock that will vest after they are laid off. Could've been clearer I guess.

So that I understand though, after you're laid off, any unvested shares you own will never will vest. You essentially forfeit those shares?

Probably depends on the company and circumstances in which you were laid off.