Last upgrade of the OS

I'm very disappointed with the latest operating system update. It's gotten much worse. While the app management windows were very intuitive before, they've now added a meta key that opens a fixed window overlaying the system windows. In many system applications, it's hard to figure out how to close them or return to the basic view. Before, everything was much more intuitive. Why, I say... are you making things worse instead of better? What do you think?