Product cetric website in Sharepoint

Hello CharlyOli-1982

this is not available on M365, it's a SharePoint legacy feature only. I can't understand the information on your linked page: "Most of the features described in this series are available only for private site collections in SharePoint in Microsoft 365."

But the good...this solution on-prem based on search, but with predefined vizualization.

In M365 you can create a Search driven solution wit PnP Modern Search Web Parts: https://microsoft-search.github.io/pnp-modern-search/ , you can create lists/libraries and with product references, you can build an catalog with custom search templates.

Otherwise, you can use Power Apps, for more customizing.

Or you can build a catalog based on SharePoint lists with ViewFormatting: https://github.com/pnp/List-Formatting/tree/master/view-samples/product-catalog

Hope you can use one of the modern possibilities.

Grüsse aus der Schweiz 😉

Dave