On AirBnB, you search for a location on the homepage and then you go to a new page, the map page. Which is a bit SPAish because it reloads apartments when you move the map. Then when you click on an apartment, you go to a new page, the apartment page.

Overall, I would count that as MPA?

The apartment pages seem to be client side rendered. When I CTRL+u and look a the source code, I see a lot of JSON and not much HTML.