I don’t think anybody is disputing that Google’s influence over Chromium gives them leverage over the browser space. This is evident in things like their change

I don’t think anybody is disputing that Google’s influence over Chromium gives them leverage over the browser space. This is evident in things like their changes to how TLS certificate metadata is displayed, support for TLS 1.3, and changes to how content is rendered. But this comment thread includes the claim that their influence over Chromium is being used to push AMP, and I don’t see how they are using their position with Chromium to push AMP, a technology that uses a specific subset of existing web technology and operates cross-browser already.