> Ladybird had fewer devs, so what were these devs at Vivaldi doing?

The Ladybird developers have not produced a browser comparable to Firefox or Vivaldi. Vivaldi have not produced a browser engine comparable to Ladybird of course.

> I don't think your argument has a lot of merit. 28 is not a magic number.

28 is a magic number was not a reasonable interpretation of my comment.