I'm using Opera for almost three and a half years, but I'm always tempted to change to another browser. Only to see that each of them has some flaw.
But if you compare Opera to its competitors, you'll likely see that,
Brave and Firefox have more privacy
Edge has almost every feature that Opera has and some others more
Vivaldi is way more customizable
Edge's Copilot seems to be better integrated than Aria and often delivers better results
Brave's and Chrome's interface is cleaner
Opera's background isn't without some issues, doesn't make it the more David against Goliath type of company it once was
If it were not for Chrome's extensive data collection, Edge's nagging into the MS eco-system, Vivaldi's sluggishness, Brave's shady bitcoin and right-wing libertarian background and Firefox's dwindling market share and compatibility issues, I'd easily choose one of those.
If you were to convince me to stay with Opera for reasons that makes it stand out, what would you point to?