This comment put everything into perspective.
I can't name anything beyond Facebook, Instagram or Whatsapp that Meta's created and I've used in the past 10 years.
I've never even (knowingly) used the LLama models tbh.
If you consider Marketplace its own product it’s a massive win but they haven’t monetized it beyond some very ineffective post boosting and advertising. I honestly think they could charge 10% of list price for items over $50, plus membership levels that reduce or remove listing fees. and make a significant amount of money.