Unfortunately, AMP has a lot of inertia. I just tried a bunch of different queries on Chrome/Android, and all the carousel entries still have the AMP lighting bolt.
Newspaper dev shops probably don't have the money to justify a standalone "get rid of AMP" project. So it will take a while to see some migration away.
Anyone have a query that results in a carousel story that isn't an AMP one?
Edit: Found one. "Biden Covid" results in an NPR story in the carousel that is not AMP.