Given, that is the exception. They just - for some bizarre reason - broke their own material design guidelines in the youtube app by moving the tabs bar to the bottom and coloring it white like its an iOS app. It is now a disgusting blemish on the UI, makes no sense, isn't ergonomic at all, and violated their own design rules. And they didn't even add anything with it. They just moved the bar for no good reason and infinite bad ones.
The later seems to be way more the status quo than the former, sadly. The designers at Google seem to be locked into one project, and then they overengineer and reinvent the app every single year to justify their jobs, while breaking UX and alienating users.
I hope I am not jinxing Google Maps here - it got overhauled like two years ago into its current state. If its "due" to be redesigned from scratch again, and they break or take away a majority of the features that make it useful now, I'm going to be sad, because there is no real competitor to the density of information Google has.
That being said, there are very few (are there any?) other companies out there that would be capable of creating as much parity across platforms as Google has, so even though there are still problems, I still salute them for their efforts.
Took me 15 minutes to find the damn thing again. :p