> I don't however agree that it has become subtle enough to considered indistinguishable from search results.

This is what it looks like on mobile. A tiny "sponsored" text is the only thing that distinguishes ads from search results: https://imgur.com/a/WOk4NdR

It's deliberately designed this way compared to what it once was https://atechnocratblog.files.wordpress.com/2016/07/history-...

To deny this is quite bizarre