I don’t have any good examples that I know of, but I am very curious. To me though, a rivalry is a rivalry when two or more of people are closely competitive. But is it really a rivalry anymore when someone has more victories over the other? I don’t think so.
Firefox vs Chrome Desktop GNU/Linux vs Broken Windows
We figured out all along that Firefox just wants to be like Chrome and Edge in it’s own way.
But as for marketshare, Firefox barely even got a sniff, if we’re all honest.