It would be nice if you could exclude sources e.g. YouTube from the video search. My personal use case is that I don't have a Google account anymore and cannot watch videos on YouTube if I don't create an account. But I decided to leave Google including YouTube behind so I would like to see only videos from other sources.
It would be even better if Kagi just would apply my blocking list where YouTube is already contained also to the video search.
This feature would be used the same way as the option "Source" but that would working the opposite way.