The first thing I'm going to check is how to close a "window" if they haven't put a simple X in the top right, I'll be disappointed.
But now there's Tabs for different default window setups: Layout, modeling, Sculpting, UV Editing... So you shouldn't have to change the setups much, they're already designed for the task. You can can still customize/ create your own. That feature was already there as a drop down but now it's more accessible and you can add more default layouts.
That said: learning how it works is definitely worth the effort if you have a large screen. You can have as much or as little on the screen as you like.