1.-Favicon isn't saved until you restart your Browser.
2.- If you press the "bookmark" icon right to the Refresh button your NEW tab doesn't work as intended
it does open "Shortcuts" instead of the "opera://bookmarks" i have set in my "NEW TAB"

I've used opera lately to watch my online series and I love to keep record of the last chapter I saw.

So I love the feature of the bookmarks that you can see them in a "list" mode cause you only see the important info from the webpage.

Only one thing: It is not saving favicons instantly, you have to restart the browser