@Robbo Well, your post looked like 📣"Letz Rant a Vivaldi". Yeah, ranting is nice, can reduce frustration, but does not help after anger is gone. You will still sit disappointed in front of your PC.
Quality of free software can range, Vivaldi does not fulfil your needs and you expected a better product, i see. Sad, but we do no force you to praise a browser. I hope Vivaldi will be the product you will chose again later if it suits you better. Or you report bugs and help to make Vivaldi better. As you like.