I too am looking for the top list. I just wasted 30 minutes trying to find it in the new UI. Finally googled it to find out it was removed
I need it as my monitor setup is vertical and there is not enough horizontal space to see the note list AND the note. It simply doesn't work for me.
I will be reverting to the legacy version until this is resolved.
FYI, Evernote makes me more productive. This is one of the few times it has actually done the opposite. But I am still a fan. Glad the top list is coming back.