I bought a book on C++20 last year when we started a project on it and I read it.

I don't think programming books are going anywhere, because they still contain a concise directory full of information on different languages or frameworks. If I try to learn a language piecemeal through chatgpt or blogs I risk missing important details or platform-specific knowledge. I'd believe books on vim are going away but books on languages or other job-essential tools have a use in the market and I can't imagine they'll go away.