It only just occurred to me that I can turn off “Use ⌘+Scroll to Zoom Page” in Vivaldi to compensate for the Magic Mouse’s incessant need to scroll while I’m trying to Cmd+Click a link.

Auto-generated description: Options for adjusting webpage zoom settings, including a slider and a checkbox for using keyboard shortcuts, are displayed.

I still dislike the mouse, but hopefully with this off, the urge to throw it out the window will be diminished.