@estelle This is not accurate. The New York Times did participate in AMP, right from the start. In line with many publishers it stopped when AMP became non-compulsory for news carousel in 2021. Same for the BBC.
https://www.nytco.com/press/the-new-york-times-participates-in-google-amp-project/
https://www.bbc.com/news/technology-35652271.amp