Opera used to be a fantastic web browser, with a custom high-performance Presto rendering engine and features like tabbed windows that didn't show up in competing browsers until years later. However, the modern Opera browser is a shadow of its former self, reliant on chasing trends and meme advertising to
furthermore, they add nonstandard features to their browser(along with chrome), which makes it difficult to make websites look the same across browsers.
fortunately, I can test those websites beforehand since we have webkit-based epiphany on GNU/Linux(the engine which safari uses).
but other developers, especially those who are on windows can’t, since safari is mac-only.
I have a special stylesheet to fix safari(and chrome) styling.
otherwise it’s a fine lightweight browser(blessed be KHTML).