It seems the worst thing you can say about Vivaldi is that it’s closed source. I actually really like Vivaldi when I want a bloated browser experience (sometimes I do). I’ve been jumping between Vivaldi and Qutebrowser on my Linux box. Qute us amazing except when it isn’t, which is about 10% of the time.

Im not sure how much I care about browsers being proprietary as long as the engine is open source (I really like safari). If there’s evidence that Vivaldi is doing terrible things with my usage data then I’ll likely change back to FF.