Hey there, this is a suggestion I'd really like to see some attention given to since I've now switched to Opera GX as my main browser across all my devices. This really only applies to the desktop versions.
On other browsers, there is usually a little tooltip/hint that appears in the lower left corner, or lower right corner if there the tooltip will hide the mouse cursor, when hovering over a hyperlink of any kind to reveal the full URL that the link will take you to. In probably 90% or more of places that links appear on the internet, the text that is displayed can be changed by the publisher. For example, I can make a hyperlink text say "www.google.com" when the URL it will take you to when you click it is really "www.mysketchysite.com". Switching to Opera GX made me realize how much I miss that little tooltip before I click on any links.
I've noticed that in Opera GX, that tooltip will sometimes appear in completely arbitrary circumstances however never when I want it to. I would like to at least see an option to be able to enable this feature in browser settings, as I searched for it in settings and could not find anything related to enabling it for all links I hover my mouse over.