you can mimic that functionality in Firefox-based browsers by adding bookmarks with search keywords (e.g. if you create a bookmark with the URL https://piped.video/results?search_query=%s and the keyword yt, submitting yt some video in the URL/search bar will search for "some video" on piped.video)
Duckduckgo.com
Because I've fallen for their privacy focused marketing strategy and I don't know about any other alternatives.
you can mimic that functionality in Firefox-based browsers by adding bookmarks with search keywords (e.g. if you create a bookmark with the URL
https://piped.video/results?search_query=%sand the keywordyt, submittingyt some videoin the URL/search bar will search for "some video" on piped.video)they also provide a native onion endpoint which can be nice.
https://lemmygrad.ml/comment/2205347