Turns out bookmarks are still there. Add a bookmark via overflow (three dots) then star at the bottom. Access your bookmarks via overflow (three dots) -> Your

Turns out bookmarks are still there. Add a bookmark via overflow (three dots) then star at the bottom. Access your bookmarks via overflow (three dots) -> Your Library. I'm not really clear why it has both bookmarks and collections. Edit: how to add a bookmark changed from the bottom shelf to the overflow menu with today's update