One for all, and all for one!

Trog lodites in the fog - Three out of the box 2-0

As I understand it, writing the score as "2-0" is incorrect; it should be written that the first round was "1-0" and the second round was "1-0."

Let's write it in a way that everyone can understand how the competition is unfolding for other teams; I think it will be much more interesting!

And I have a question: is there a difference in the score with which a team wins... 3-0 or 2.5-0.5 or 2-1? As I understand it, in any of these cases, 3 points are awarded, is that correct?