Is it known whether this sort of hiring freeze affects all levels? I have a friend who's in-progress for a staff role at Meta and I had heard in the past that staff was often "immune to hiring freezes."
Imagine being of IC7+ caliber and voluntarily deciding to jump on this sinking ship. I doubt such a person exists. Might be an opportunity to upsell yourself into an IC7[+] offer, though.
But meta is very stock compensation heavy so you are betting on the company stock at least not dropping considerably like the people that joined in august of last year at a $350 per a share price.