In the previous version I had all my most visited sites as toplevel-bookmarks (which were displayed in the new-tab-page) and a bookmark-folder with "maybe-read-later"-bookmarks. That was never very good on mobile because there was no way to reorder bookmarks.

Now I have my most visited sites in the new "top sites" section and the rest goes to bookmarks. Works for me but there is also absolutely no benefit to before (bookmarks are even less accessible). And you still can't reorder any bookmarks/top-sites/collections nor export/import them.

But why fix old bugs or implement requested features when you can just start completely new and ignore the users. That's definitely more fun for the programmers.