This action is one of my favorites and i have been using it for as long as I can remember when I run across a word I am not sure about or if I am not sure I am using a specific word correctly in a sentence I am trying.
It works on Safari, Chrome and others. But it appears that Opera and Opera GX have a customized altered right click from the macOS default one. Which in return removed the "Right Click: (word) > Look Up = Definition"
How do I get this back, or is there an extension that will duplicate this same exact action in Opera?