Zoom level per site exception
Don't seem to be able to set zoom level "exception" per site (settings/content -> Zoom - Manage) No way to add host, or I am missing something. Double-clicking, enter, right-click, typing, nothing happens. I like to have my regular zoom on 150%, and add site exceptions.
This is important. If the zoom level is set on a page for a particular site, Vivaldi should continue to honor that zoom setting for all pages on that site.