Baseado no Chromium não me interessa pessoalmente, mas achei interessante esta feature:
DuckDuckGo previously released a beta version of its browser on macOS, and the Windows version has one important thing in common: it doesn't come with a rendering engine. The DuckDuckGo browser uses Windows' integrated web rendering engine, known as Windows WebView2. This core Windows API uses the Blink rendering engine, which is part of the Chromium project, but there's no other Google code involved. And the upshot is that most sites will render accurately under Blink, and it will automatically be kept updated via Windows updates.
https://www.extremetech.com/internet/duckduckgo-releases-beta-privacy-browser-for-windows