Until Opera has no built-in ad-block for YouTube as Brave does, I refuge using Opera no matter its design is.
Another thing to point out is that Opera-creators want to put things into the nature that do not belong there - "hugge". If I want to work on a computer, I need a nice warm and dry environment around me for being able to focus. If I want to join the nature then I do not take the computer with me.
Then, I clicked "Log in to post" which opened a pop-up window. I logged on. Then the pop-up window told me that it would be safe to close the window which I did. Again, I have to click "Log in to post". I did that just now. Again, a pop-up window opened, this time with forums. I closed that window. I need to click the button for the third time and its text displayed is "Post a comment" now.
You guys are far for a user-friendly system.