How would SEO landscape change with abundance of AI-generated content?

The current system is built on low effort content farms with articles written by ghost writers who stitched together what they googled on the subject. If anything changes in the seo world, it's less ghost writer jobs. Already happening.

The current system is driven by ad revenue, but when the customers are advertisers, then the user experience sucks. Why would I want to wade through search results full of ads when OpenAI, Bard, etc can answer my question in seconds.

How does the landscape change? The cheap low effort content farm business model is dead.