There are lists in the web version of all the vocab covered in the web version. It's not broken down by section though.
How do you access these vocabulary lists?
You have to go to the duolingo website.
I haven't managed to find my way to all of the options, but you could start here
Just wondering why there are no lists of words used, like there used to be, for each section
They're in the tips and notes for each lesson -- you can only see them from the browser version, not from the phone app, but you can open that in any browser, including your phone's browser. Just go to duolingo.com and sign in.