I use custom CSS that makes the bar stick to the top of the screen when I scroll down, as can be seen below:

This is super handy and is similar to functionality on most other search engines. While testing something with my custom CSS turned off I was very surprised that this wasn't native to Kagi. I think it would be good for default users to have this be implemented. It provides quick and easy access to search options, quick settings, the app picker, and the search box, all without scrolling up.