I still remember watching podcasts, reading blogposts, hearing prominent VC's like Elad talking about etc.. Now everbody silent because Elon is the baba yaga...
You have multiple clients (android, ios, web) and a whole cluster of microservices calling each other. The microservices calling each other will easily use up more requests.
IMO the likely culprit is rate limits being triggered by a huge increase in scraping caused by the new api pricing.