[lsh]

I do believe Otter is doing a better job of restoring Opera's past glory, feature-wise. Vivaldi, even with it's HTML gui feels like another opera/chrome/chromium derivative.

Plug: http://otter-browser.org/

[rplnt]

They still suffer from the "different" rendering engine. Some things, it seems, can't be achieved beyond that.

[X-Istence]

Qt5 ships with WebKit.