Remove the first search choice in the address bar, because it's already in the address bar
Please remove what's behind the "X" in red because it's already typed in the address bar and always adds a unnecessary keystroke each time you search something.
If not possible, put it at the bottom of the screen.
If you think a feature is useful and missing in Vivaldi, please make a request.
How to make a feature request for Vivaldi
If you think your problem can be solved by a missing feature, please add a request at https://forum.vivaldi.net/category/48/features-requests in the corresponding thread for your browser version.
This first entry could potentially be useful. Think about someone posting to the address bar with middle click and just using the mouse ... there is no other way to click "enter" then.
Not defending this feature, but it has a meaning.