It seems to be switching to the next article on the carousel. Which, at least for me completely breaks the web experience. Opening an amp page from google requires getting used to a whole new set of, in my opinion, unnecessary conventions.
I can't think of another search engine alternative - a truly objective one. It used to be Google. Then they gained a tremendous amount of market share. Even an English language verb - googled. Now it's them. And I ask, now what?
Try out DuckDuckGo (https://duckduckgo.com/). I've been using it for a few years and love it. They don't track you. They don't store your info. Plus, as far as I know they don't do anything besides search so they have no reason to not be objective.
I use DDG on all my devices at home and work. This whole thread has been a learning experience to me, because I never experience the various problems people have been reporting with AMP.
Perhaps my results could have been loading faster? I'm not willing to make a deal with the devil to find out. I'm pretty satisfied with what I have now.
There was a vicious spiral at work related to advertisers not caring enough about page load, and adding that signal was not enough. AMP shifted the game by placing the burden on Google of specifying a way to hit advertisers' goals while offering a faster experience.
Doesn't Google already admit to prioritising AMP pages in search results?