Why does Opera GX rarely come up in browser discussions?

I'm curious about people's experiences with Opera GX, particularly because it seems to be largely absent from broader discussions about web browsers despite being probably one of the most advertised online.

I tried it for a while, but I didn't find that it performed noticeably better than other browsers. My main impression was that it felt somewhat clunky, and that many of its more unusual settings and customization options added complexity without improving the actual browsing experience. I can understand the appeal of its visual style and gaming-oriented branding, but in practice, those features mostly felt unnecessary to me.

I've used Firefox for the past couple of years and have been happy with both its performance and general usability. More recently, I've started using DuckDuckGo's app on my phone, and I'm considering trying the desktop version as well.

For people who use Opera GX regularly, what does it offer that keeps you using it? Are there features that become more useful over time, or is its appeal mainly the interface and customization?

I'm also interested in why it rarely appears in browser recommendations or comparisons. Is that because of technical concerns, Opera's reputation, privacy considerations, or simply because it occupies a fairly specific niche?