But to be frank, it's clunky and I'm simply not going to bother so long as Opera is being actively developed. If Opera did stop, or turned into Chinese malware or something, then I would probably just jump over to Firefox and use plugins for the most Opera-like experience possible. Because sync is a must-have (including desktop and mobile)... and we'll just have disagree on whether 99.8% of the browser market has made "incorrect" UX choices on how to open a link.
This reaction IS what I was talking about, and does seem at odds with Vivaldi's branding and marketing. The website slogans include, "It's your web. Surf it the way you want!", " A million ways to customize everything!", etc. But suggest letting users customize Vivaldi so that common new tab behavior is the default, and ancient Opera behavior is the one requiring extra clicks... and suddenly customization is bad, and the way people want to surf the web is objectively wrong.
Come ON. Figure out what the purpose of Vivaldi is, and proceed accordingly. If the purpose is to re-implement Opera 12 out of spite toward a former employer, then that's fine... but don't have the marketing revolve around customization. If the purpose really IS customization, then don't be so hostile or dismissive when users request customization options that depart from Opera 12.