@avl why not both can exist at the same time? why it has to be one or the other? instant search feature should be enhanced in my honest opinion. we should be able to search in tabs, bookmarks, history, extensions, under the hood shortcuts, web search with custom search engines, etc.
another option I can think of -and I believe this can be a bit more sustainable in your part; is using the enhanced address bar in a similar way. like how firefox did. you can make it bigger on focus and look (maybe) and behave similarly to the spotlight in macos? I really liked the enhanced address bar and maybe it can become a very cool feature and make everyone happy?