As a long term (20+ years) Opera user, for the first time I'm angry with a feature. Not because I don't like the idea (I wanted to have this feature in Opera for a year now, since I've seen it on MS Edge, which I've to use on a business PC), but because of the very bad, buggy, unintuitive implementation. Please revert what you've done (maybe fire the guy who was responsible for this feature) and just copy this functionality from the Edge.