It's enforced through visibility / rankings in Google Search results.
https://developers.google.com/search/docs/guides/about-amp
Isn't there a term for using dominance in one market to compel behavior in another?
https://developers.google.com/search/docs/guides/about-amp
Isn't there a term for using dominance in one market to compel behavior in another?
This is not enforcing AMP on publishers in the results, and the argument that it is by using icons falls under the 'it's kind of the same' category.
This is how you do agnostic search results, and it is not putting the thumb on the scale as you're implying.