Yes. There's only 3 major browsers. Chromium (Chrome), Firefox, WebKit (Safari). Nearly every other webbrowser is a fork of one of these, most are forks of Chromium, including Opera. As such, most webbrowsers will be affected by the change.
DuckDuckGo's webbrowser is somewhat unique, in the sense that it isn't its own browser at all. It's a "WebView", using the OS built-in webbrowser with a coat of paint.
This means it's Blink/Chromium on Android and Windows, and WebKit on iOS and macOS.
Are Opera and it's derivatives affected by this?
Yes. There's only 3 major browsers. Chromium (Chrome), Firefox, WebKit (Safari). Nearly every other webbrowser is a fork of one of these, most are forks of Chromium, including Opera. As such, most webbrowsers will be affected by the change.
What's duck duck go's browser?
DuckDuckGo's webbrowser is somewhat unique, in the sense that it isn't its own browser at all. It's a "WebView", using the OS built-in webbrowser with a coat of paint.
This means it's Blink/Chromium on Android and Windows, and WebKit on iOS and macOS.