My friends just updated their Xperia 5 III to 61.1.A.1.149 and the UI looks dreadful.

The upper menu has way less icons, but those are too big. 

Volume bar is also huge, taking needed space, especially when watching a video and want to change volume uninterrupted, it takes too much area!

The settings menu looks like coming from older Nokia phone. 

Is it possible to change it? Go back? 

Thumbs down to design!