Same thing happened with Google maps a couple of years ago. They changed the UI to one a lot less functional, gave users an option to use the old UI for a while, then took it away. Now we're stuck with gmaps that are much worse than they used to be. Product managers at Google (and everywhere else) don't get promoted for leaving good products alone.
The layout takes up more of the screen, which I kinda like, but my issue was always how terrible terribly slow it is now. It's so laggy, compared to competitors like Here and OSM. The Fruit co could probably give Google a run if they opened up a web version. Google Maps on Android is almost entirely unusable now. It's so god damn slow on my Sony Z5c running Lineage. The combination of Maps and Google Services updates…
This isn't how Apple works. They make money from hardware sales - so there is a native app version of Apple Maps for both iOS and macOS. (And, with the recent updates, it is pretty damn great.)