What is the difference between a screenwriter and a writer? Speak in your own words, don’t copy

Screenwriters pay attention to storytelling, and what they write is film or TV literature. It does not need to be artistic, but it must have storytelling. Writers, on the other hand, pay more attention to literature and artistry. Take a novelist as an example. The story he writes may not be the best, but the literature and artistry he expresses or conveys must be valuable.