Into a search box, people type two words. To a chat, the same person describes their situation: budget, industry, timeline, what has gone wrong so far. “seo agentur” turns into “we are an SME in eastern Switzerland, our website has brought in hardly any inquiries for a year and we are looking for someone to fix that”.
AI search answers these sentences, not your keyword. And it names a short selection of providers, not a list of results. If you are not among them, you do not exist in that answer.
The obvious reaction is to produce more content and hope it works. The better approach is to first find out which customer questions are actually being asked and for which of them you are missing today. That is what prompt mapping does.