A brand usually needs a facts page when the homepage alone is too broad to support citation-ready understanding. If buyers and AI systems keep asking the same short factual questions, the public layer needs a more explicit facts asset.
If the homepage tells the story, but cannot answer the factual questions clearly, a facts page is probably overdue.
People repeatedly ask what the product is, what stage it is in, what it actually does today, and what it does not claim to do.
A homepage may need to carry positioning, trust, CTA, and product story. That often makes it the wrong place for dense factual clarity.