The Achilles heel of LLMs is the distinct lack of practical real-world applications. Yes, Google and Microsoft have been shoving the tech into everything they can fit, but that doesn't a product make.
Practical, real-world application.
If I'm being incredibly generous I will concede that this could have been the case for the first few weeks when it was making headlines, but it clearly isn't true now.
It would be literally impossible to keep up these figures for as long as ChatGPT has without a ton of repeat users. There simply aren't enough people/devices.