Which very cheap laptops are currently available with software and the necessary programs for immediate purchase?
Nothing has changed about the question. ChromeBooks - cheap, long battery life and everything you need on board thanks to Google Docs and Co. The fact that Android apps and Linux programs run on it only makes it even better.
Do you have a specific link to a product?
Would that work? https://www.real.de/product/313075637/?kwd=&source=pla&sid=25797337
No, not that. I posted a specific link in the first thread. ChromeBook in Google and take the first hit directly from Google.
But why? What is it missing?
Everything? It's not even a laptop, it's just a privacy screen that you stick on a computer display. Even the cheapest laptops now cost at least 170 euro upwards. And those are rather cheap smartphones in large, unstable plastic housings. At least 200-300 are used.