Opera is beyond rescue. As someone who spent a decade working there it saddens me to say so, but please don't use it. Actual, executive day-to-day control over the browser tech has progressed sort of like this: 1995: Oslo, Norway 2008: Linköping, Sweden 2014: Wrocław, Poland 2020: Beijing, PRC (the sale happened in 2016, but they were hands-off for quite some time; I think they were being busy with shady fintech stuf…
It was dead to me the moment they switched to chromium
I was a huge fan and tried to convert my friends from 2004-2012. It was tough watching them slowly convert to firefox or stay on IE.
It really didn't help that Opera handled transparency so poorly. That made myspace pretty much unusable.