> It would be really interesting to see a website that generates all the pages every time a user requests them

We tried a variant of this for e-commerce and my take is that the results were significantly better than the retailer's native browsing experience.

We had a retailer's entire catalog processed and indexed with a graph database and embeddings to dynamically generate dynamic "virtual shelves" each time when users searched. You can see the results and how it compares to the retailer's native results

Example on Ulta's website: https://youtu.be/JL08UDxM_5M

Example on Safeway: https://youtu.be/xQEfo_XCM2M