Aside from the completely customizable UI, I’d say tab stacking and tab tiling. Web panels are cool as well, you can have translators, calculators and whatnot in your sidebar for quick access that way. It also has a built-in RSS feed reader which is neat.
What Vivaldi features do you feel are game changing? I’m not that familiar with it and would love to hear from someone who uses Vivaldi.
Aside from the completely customizable UI, I’d say tab stacking and tab tiling. Web panels are cool as well, you can have translators, calculators and whatnot in your sidebar for quick access that way. It also has a built-in RSS feed reader which is neat.