I guess Meta still needs some people to run the core business (ads/social media rageslop) but your point about 2021 staffing levels would suggest they haven't been able to innovate or bring anything new to market in the past 5 years. Llama has certainly been impressive but doesn't really add more money to the pile or more eyeballs to the ad inventory.
It would be nice if someone with another big pile of money could put some of these ex-employees to work so us mid-level schlubs don't have to compete with former FOAMers (new initialism for the hyperscalers of layoffs) for 'regular' tech jobs, but it appears there are no new ideas or markets to capture.
I disagree. While their core products have stayed similar, they keep getting better at ads after Apple's privacy changes in 2021 hurt their efficiency. And Instagram has changed quite a bit, with reels growing to half of total IG usage. (Of course these are dystopian products but I'm just trying to be objective here).
To me a company at FB's scale is inevitably going to be optimizing around the margins. I mean you could argue any of Google, Amazon, FB, have had basically the same cash cows for 10+ years now.