Oh I do think they did see it, considering how good they are they've probably been a tuning focus for a while.
The signal the agent usage is sending though is that Anthropic is way ahead since all we hear about is Claude these days despite OpenAI spending so much more money, Antrophic is also out trialling vending machines,etc.
ChatGPT apart from generating text was a bit of a query/research tool but now that Google has their AI search augmentation shit somewhat together I'm not feeling much need for ChatGPT as a research partner.
So now the big question is, with coding and search niches curtailed, where will OpenAI be able to generate profits from to justify their insane spending?