@DoctorG , I am surprised to discover today that the "simpler" URLs existed since years ago! I never heard about them, unfortunately. Are they talked about anywhere? Where they mentioned in any conversation or discussion, after their creation?
I just created a feature request about it (https://forum.vivaldi.net/topic/96174/unique-download-urls-for-the-current-versions)... I hope my thread is not closed or hidden, since it mentions a few details that do not seem to exist yet, and I think they can be good. I will let their discussion happen there, anyway - I hope you or any other Vivaldi Team member do not mind.