My wife is a secondary school teacher (UK), teaching KS3, GCSE, and A level. She says that most of her students are using Snapchat LLM as their first port of call for stuff these days. Many of the students also talk about ChatGPT but she had never heard of Claude or Anthropic until I shared this article with her today.
My guess would be that usage is significantly higher across all subject, and that direct creation is also higher. I'd also assume that these habits will be carried with them into University over the coming years.
It would be great to see this as an annual piece, a bit like the StackOverflow survey. I can't imagine we'll ever see similar research being written up by companies like Snapchat but it would be fascinating to compare it.