I'm sure I'm using the term incorrectly, but for me (a non-Apple Music subscriber who just wants a clean Music player), having the app dominated by things like "For You" and "Radio" and the newest redundancy "Browse" is just in the way of setting up the bottom row of icons with things I might actually use. If I want to "Browse" new music, I'll go to the iTunes store app properly or any other of my music finding channels. All those added "features" just feel bloated to me in an app that should just play music you already purchased/downloaded.
You'll be able to disable them in the settings. This is pre-beta software.