Perhaps I am old fashioned, but why not have a feedback area or at least an email address where feedback can be sent?
I have used Opera as my main browser for over 8 years on PCs. phones and other devices as I love it.
Please simply give an email for feedback as there used to be
However I do not like the Speed Dial page default of Google Search - can we have an option to (easily) change this to preferred search engine (DukcDuckGo)